We conducted a double-blind, placebo-controlled clinical trial to explore the effectiveness of a zinc oxide/glycine cream in treating cold sores caused by facial and circumoral herpes. By dividing 46 participants into two groups, one receiving the zinc treatment and the other a placebo, we aimed to measure how this formulation affected the duration and severity of cold sore symptoms.
Our results were quite promising! Participants who began using the zinc oxide/glycine cream within the first 24 hours of noticing symptoms experienced cold sore lesions that lasted only an average of 5 days, compared to 6.5 days for those on the placebo. Additionally, we noticed a significant reduction in the overall severity of their symptoms, including blistering, soreness, itching, and tingling.
As for side effects, subjects treated with the zinc cream experienced only minor and reversible issues typical of ionic zinc salt solutions. This indicates that the zinc oxide/glycine cream is not only effective but also safe for treating cold sores, presenting a valuable option for many people seeking relief from this common condition.
Read More
9
Zinc gel aids cold sore healing
[Clinical double-blind trial of topical zinc sulfate for herpes labialis recidivans].
We conducted a double-blind, placebo-controlled clinical trial to assess the impact of zinc sulfate gel on cold sores, specifically herpes labialis recidivans. In our study, patients treated with zinc sulfate gel, known as Virudermin Gel, experienced significantly reduced symptoms and faster healing compared to those who received just the gel without zinc.
The results were promising; the patients using the zinc gel reported less discomfort, and their sores healed more quickly. Importantly, this treatment showed no significant side effects, making it a safe option for managing cold sores. Additionally, the antiseptic properties of zinc sulfate helped prevent any superinfections, adding another layer of benefit to its use.
Overall, our exploration into zinc’s effectiveness provided valuable insights for both patients and healthcare providers seeking reliable cold sore treatment options. With simple application and proven results, zinc sulfate gel could become a go-to remedy for those frequently struggling with herpes labialis recidivans.
Read More
8
Zinc treatment helps cold sores
Recurrent herpes labialis: a pilot study of the efficacy of zinc therapy.
We aimed to understand how zinc might affect the occurrence and duration of cold sores, also known as herpes labialis. In our study, we treated 20 patients, mostly women with an average age of 26.6, who experienced more than six episodes of cold sores each year. They received zinc sulphate at a dose of 22.5 mg twice daily during specific months over a year while we monitored their symptoms for 12 months.
Our results were promising. Patients reported a decrease in the frequency of cold sore episodes, averaging fewer than four instances per year. Moreover, the duration of these episodes was also shortened to around 5.7 days, significantly less than usual for these conditions.
Thus, we can say that systemic zinc sulphate seemed to effectively reduce both the number of cold sore outbreaks and the recovery time. This suggests that zinc might be a beneficial option for individuals who struggle with recurrent cold sores.
Read More
Most Useful Reviews
9
Helps with colds
102 people found this helpful
At the first signs of a cold, this product helps significantly; I recover in 4-5 days with vitamin C and D3.
Read More
9
Effective for cold sores
4 people found this helpful
I'm very pleased with this product. It’s not as strong as my usual Zinc Picolinate, but it significantly helps with my cold sores, and I haven’t caught a cold this season, likely thanks to it.
Read More
9
Effective for colds
2 people found this helpful
Zinc is essential for tackling colds. My wife ensures our family, including the children, takes zinc. I notice an improvement by morning. We've switched from picolinate to glycinate, which seems just as effective and is easy to digest.
We explored the connection between zinc levels and recurrent herpes labialis (RHL), commonly known as cold sores. In a study involving 80 individuals, we compared the salivary zinc levels of healthy people with those experiencing RHL during both the acute and convalescent phases.
The findings revealed that patients in the acute phase had significantly lower zinc levels (160.8 ng/ml) compared to when they were recovering (205.7 ng/ml). Both those phases showed lower zinc levels than the healthy individuals' average. This suggests that zinc levels are not just lower when cold sores are present, but also improve after the lesions heal.
Our results indicate that maintaining adequate zinc levels might be beneficial for people suffering from cold sores. Incorporating zinc supplements could play a role in both treating and preventing these uncomfortable outbreaks. We found that increasing serum zinc might help RHL patients, shedding light on a potential supportive treatment strategy for cold sores.
Read More
9
Zinc may relieve cold sores
Safety and effectiveness of an L-lysine, zinc, and herbal-based product on the treatment of facial and circumoral herpes.
We conducted a small pilot study to investigate how a combination of L-lysine, zinc, and herbal ingredients could help treat cold sores caused by the Herpes simplex virus. Our goal was to observe the changes in symptoms such as itching, burning, and soreness among participants over the course of treatment.
Thirty individuals, split evenly between genders, participated in our open-label study. We monitored their symptoms through various methods, including self-reported outcomes, photographs, and daily diaries. By the sixth day of treatment, most participants showed considerable improvement, with some experiencing full resolution of their symptoms.
While we didn't isolate the effect of zinc alone, its inclusion in the treatment mix seems promising. By the end of our study, we found that 87 percent of participants had improved symptomatically, which indicates that the combination treatment may effectively relieve cold sore symptoms. Importantly, no adverse effects were reported during the study, which adds to our understanding of these treatments' safety.
Read More
9
Zinc cream alleviates cold sores
A randomized clinical trial on the treatment of oral herpes with topical zinc oxide/glycine.
We conducted a double-blind, placebo-controlled clinical trial to explore the effectiveness of a zinc oxide/glycine cream in treating cold sores caused by facial and circumoral herpes. By dividing 46 participants into two groups, one receiving the zinc treatment and the other a placebo, we aimed to measure how this formulation affected the duration and severity of cold sore symptoms.
Our results were quite promising! Participants who began using the zinc oxide/glycine cream within the first 24 hours of noticing symptoms experienced cold sore lesions that lasted only an average of 5 days, compared to 6.5 days for those on the placebo. Additionally, we noticed a significant reduction in the overall severity of their symptoms, including blistering, soreness, itching, and tingling.
As for side effects, subjects treated with the zinc cream experienced only minor and reversible issues typical of ionic zinc salt solutions. This indicates that the zinc oxide/glycine cream is not only effective but also safe for treating cold sores, presenting a valuable option for many people seeking relief from this common condition.
Read More
9
Zinc gel aids cold sore healing
[Clinical double-blind trial of topical zinc sulfate for herpes labialis recidivans].
We conducted a double-blind, placebo-controlled clinical trial to assess the impact of zinc sulfate gel on cold sores, specifically herpes labialis recidivans. In our study, patients treated with zinc sulfate gel, known as Virudermin Gel, experienced significantly reduced symptoms and faster healing compared to those who received just the gel without zinc.
The results were promising; the patients using the zinc gel reported less discomfort, and their sores healed more quickly. Importantly, this treatment showed no significant side effects, making it a safe option for managing cold sores. Additionally, the antiseptic properties of zinc sulfate helped prevent any superinfections, adding another layer of benefit to its use.
Overall, our exploration into zinc’s effectiveness provided valuable insights for both patients and healthcare providers seeking reliable cold sore treatment options. With simple application and proven results, zinc sulfate gel could become a go-to remedy for those frequently struggling with herpes labialis recidivans.
Read More
8
Pomegranate extract reduces inflammation
Anti-inflammatory activity of Punica granatum L. (Pomegranate) rind extracts applied topically to ex vivo skin.
We examined how the combination of pomegranate rind extract (PRE) and zinc impacts cold sores, particularly focusing on inflammation. By applying these substances to ex vivo porcine skin, we were able to assess their ability to modulate COX-2, a key player in the inflammation process.
Our findings revealed that the topical application of PRE significantly reduced COX-2 levels in the skin after just six hours and maintained this effect for 24 hours. When we combined PRE with zinc, the results matched those of PRE alone, indicating that zinc didn't add extra benefits to inflammation control when used together.
However, we also noted that zinc alone showed no significant anti-inflammatory effect, highlighting that the benefits we observed were primarily due to the pomegranate extract rather than zinc. This suggests that while zinc is commonly thought beneficial for treating cold sores, its impact on inflammation might be limited unless paired with more potent anti-inflammatory agents like PRE.
In conclusion, pomegranates present a promising approach to managing inflammation and pain associated with cold sores, but zinc’s standalone effectiveness requires reconsideration.
At the first signs of a cold, this product helps significantly; I recover in 4-5 days with vitamin C and D3.
Read More
9
Effective for cold sores
4 people found this helpful
I'm very pleased with this product. It’s not as strong as my usual Zinc Picolinate, but it significantly helps with my cold sores, and I haven’t caught a cold this season, likely thanks to it.
Read More
9
Effective for colds
2 people found this helpful
Zinc is essential for tackling colds. My wife ensures our family, including the children, takes zinc. I notice an improvement by morning. We've switched from picolinate to glycinate, which seems just as effective and is easy to digest.
Read More
9
Improves immunity
1 people found this helpful
My body aches and cold sores disappeared after taking the zinc supplement. I highly recommend it for those with weak immunity.
Read More
9
Quick relief
1 people found this helpful
I give this to my children at the first signs of a cold. Within three days, it effectively alleviates all symptoms without using additional medicines—just zinc.
Cold sores, also known as fever blisters, are small, fluid-filled blisters that typically appear on or around the lips, although they can also occur in other areas of the face. They are caused by the herpes simplex virus (HSV), primarily HSV-1, and are highly contagious. The initial outbreak may be accompanied by symptoms such as fever, swollen lymph nodes, and a general feeling of malaise. Once infected, the virus remains dormant in the body and can reactivate, leading to recurring outbreaks, often triggered by stress, illness, or exposure to sunlight.
Treatment options for cold sores often focus on alleviating symptoms and speeding up healing. Over-the-counter creams containing antiviral medication like docosanol can help reduce the duration of an outbreak when applied early on. Prescription medications may be recommended for more severe cases. Home remedies, such as applying ice, using aloe vera, or taking lysine supplements, may also offer some relief. Prevention strategies include avoiding known triggers and practicing good hygiene, like not sharing utensils or personal items with infected individuals.
Zinc is a versatile metal known for its various applications in industry and health. It is a bluish-white metallic element represented by the symbol Zn and atomic number 30 on the periodic table. Zinc is primarily used for galvanizing steel to prevent rusting, in the manufacturing of alloys, and as a component in batteries. Additionally, zinc plays a crucial role in biological processes, making it an essential trace element in the human diet. It is involved in immune function, protein synthesis, wound healing, and DNA synthesis, highlighting its importance in maintaining overall health and well-being.
Zinc is often touted as a potential remedy for cold sores, primarily due to its immune-boosting properties and its role in skin health. Research suggests that zinc may help reduce the severity and duration of cold sore outbreaks, as it can inhibit the replication of the herpes simplex virus, the virus responsible for cold sores. It is available in various forms, including topical ointments and oral supplements. When applied directly to the affected area, zinc oxide or zinc sulfate creams may help soothe the skin and promote healing.
However, it's important to note that while zinc may aid in managing cold sores, it is not a cure. Results can vary from person to person, and some may find topical treatments to be more effective than others. Always consult a healthcare professional before starting any new treatment regimen, as they can provide guidance tailored to your specific situation. Additionally, maintaining a healthy lifestyle, including proper nutrition and stress management, can further support your immune system in preventing and managing outbreaks effectively.
Based on user reviews, the time it takes to see results from this supplement for cold sores can vary, but many users report noticeable improvements relatively quickly. For instance, one reviewer states that they experience recovery from cold symptoms in about 4-5 days when taking the product at the first signs of a cold Read Review. Another user claims that within three days of administration, they effectively alleviated all symptoms without additional medications Read Review.
Several users mention that taking zinc at the onset of symptoms contributes to a shorter duration of their illness, indicating that acting quickly may lead to faster results. For example, one user notes that they find improvements by the next morning after taking zinc Read Review. Overall, it appears that users generally start to see improvements within a few days, emphasizing the importance of timely supplementation for optimum effectiveness.
This supplement, particularly zinc, has garnered attention in research as a potential aid for cold sores, primarily caused by the herpes simplex virus. Several studies indicate that zinc may play a role in managing cold sore symptoms and recovery times. For instance, one study suggested that patients with recurrent cold sores had lower serum zinc levels during acute flare-ups, and maintaining adequate zinc levels might be beneficial for treatment and prevention [3]. Additionally, a comprehensive trial involving zinc sulfate gel showed that it effectively reduced symptoms and enhanced healing rates, making it a promising topical option [8].
However, while zinc demonstrates some effectiveness, it's imperative to remember that its impact may vary. The combination of zinc with other treatments, such as antiviral medications or pomegranate extract, has been studied, but the benefits of zinc alone are less certain, especially regarding inflammation control [2]. Overall, while zinc may not be a standalone miracle fix, its inclusion in treatment protocols could offer support for those dealing with cold sores, especially when used alongside other therapies that target the virus directly.
Based on user reviews, many individuals report significant improvements in symptoms related to cold and cold sores after using zinc supplementation. For example, one user noted a remarkable recovery within 4-5 days when incorporating vitamin C and D3 alongside zinc at the first signs of illness Read Review. Several others mention that taking zinc helps alleviate symptoms quickly, often in as little as three days without the need for other medications Read Review. Additionally, one user highlighted improvements by the following morning of taking the supplement, indicating timely action can lead to swift relief Read Review.
Moreover, users emphasize that zinc not only helps shorten the duration of colds but also supports recovery from conditions like cold sores and even some post-vaccine symptoms Read Review. Many note improvements in their overall well-being during colder weather, which suggests that zinc supplementation could be beneficial during flu seasons Read Review. While results can vary widely between individuals, the general consensus is that zinc can significantly boost immunity and contribute to a quicker recovery from both colds and cold sores.
Users frequently report positive experiences when combining this zinc supplement with other vitamins like C and D3 for managing cold sores and colds. For instance, one review mentions that taking zinc alongside vitamin C and D3 at the onset of symptoms resulted in recovery in just 4-5 days Read Review. Others have highlighted that the combination of zinc with vitamin C not only enhances overall immunity but also aids in the reduction of cold symptoms Read Review.
Additionally, several users indicate that switching from other forms of zinc, like zinc picolinate, to zinc glycinate, continues to provide effective relief from cold sores while also being gentle on the stomach Read ReviewRead Review. The synergistic effect of combining these supplements seems to optimize their benefits, with some users noting improvements in symptoms by the next day (Read ReviewRead Review) and others experiencing enhanced overall wellness during colder months Read Review.
Based on recent studies, zinc supplementation appears to hold promise in managing cold sores, particularly when it comes to reducing the frequency and duration of outbreaks. One notable study indicated that administering zinc sulfate at a dose of 22.5 mg twice daily over a specific timeframe led to a significant decrease in cold sore episodes, with patients experiencing fewer than four outbreaks per year compared to those not receiving zinc intervention [5]. Moreover, topical treatments combining zinc, such as zinc oxide or zinc sulfate gel, have shown efficacy in alleviating symptoms and promoting faster healing, especially when applied early in the course of an outbreak [7].
However, there isn't a definitive consensus on the optimal dosage for zinc specifically targeting cold sores. While a dose of 22.5 mg twice daily was found beneficial in one study, other research suggests that topical concentrations ranging from 0.025% to 0.05% could offer preventive benefits [9]. Overall, while zinc may play a supportive role in treating cold sores, it is often recommended to be used in conjunction with other treatments rather than as a standalone option, as its effects can be modest compared to more established antiviral therapies [4]. Be sure to consult a healthcare professional before starting any new supplementation regime.
9
Helps with colds
102 people found this helpful
At the first signs of a cold, this product helps significantly; I recover in 4-5 days with vitamin C and D3.
9
Quick relief
1 people found this helpful
I give this to my children at the first signs of a cold. Within three days, it effectively alleviates all symptoms without using additional medicines—just zinc.
9
Effective for colds
2 people found this helpful
Zinc is essential for tackling colds. My wife ensures our family, including the children, takes zinc. I notice an improvement by morning. We've switched from picolinate to glycinate, which seems just as effective and is easy to digest.
9
Improves immunity
1 people found this helpful
My body aches and cold sores disappeared after taking the zinc supplement. I highly recommend it for those with weak immunity.
7.5
Boosts immunity
10 people found this helpful
Zinc glycinate is well absorbed, especially with vitamin C. It improves my skin and well-being in cold weather. After feeling cold, I took it and my illness was mild without complications. Small, tasteless capsules are easy to swallow.
7.5
Strengthens nails
13 people found this helpful
Glycine makes the chelate easier to swallow. Since starting this, my nails have improved, and it helped my friend regain his taste after vaccine-related issues. Zinc strengthens the skin and may reduce cold symptoms when combined with vitamin C.
6
Aids recovery
15 people found this helpful
An excellent bioavailable form of zinc that's gentle on the gut. I take it throughout all seasons and double the dose during illness; it aids the body in recovering from Covid and helps with cold sores.
9
Zinc impacts cold sore recovery
Comparative analysis of salivary zinc level in recurrent herpes labialis.
We explored the connection between zinc levels and recurrent herpes labialis (RHL), commonly known as cold sores. In a study involving 80 individuals, we compared the salivary zinc levels of healthy people with those experiencing RHL during both the acute and convalescent phases.
The findings revealed that patients in the acute phase had significantly lower zinc levels (160.8 ng/ml) compared to when they were recovering (205.7 ng/ml). Both those phases showed lower zinc levels than the healthy individuals' average. This suggests that zinc levels are not just lower when cold sores are present, but also improve after the lesions heal.
Our results indicate that maintaining adequate zinc levels might be beneficial for people suffering from cold sores. Incorporating zinc supplements could play a role in both treating and preventing these uncomfortable outbreaks. We found that increasing serum zinc might help RHL patients, shedding light on a potential supportive treatment strategy for cold sores.
9
Zinc gel aids cold sore healing
[Clinical double-blind trial of topical zinc sulfate for herpes labialis recidivans].
We conducted a double-blind, placebo-controlled clinical trial to assess the impact of zinc sulfate gel on cold sores, specifically herpes labialis recidivans. In our study, patients treated with zinc sulfate gel, known as Virudermin Gel, experienced significantly reduced symptoms and faster healing compared to those who received just the gel without zinc.
The results were promising; the patients using the zinc gel reported less discomfort, and their sores healed more quickly. Importantly, this treatment showed no significant side effects, making it a safe option for managing cold sores. Additionally, the antiseptic properties of zinc sulfate helped prevent any superinfections, adding another layer of benefit to its use.
Overall, our exploration into zinc’s effectiveness provided valuable insights for both patients and healthcare providers seeking reliable cold sore treatment options. With simple application and proven results, zinc sulfate gel could become a go-to remedy for those frequently struggling with herpes labialis recidivans.
8
Pomegranate extract reduces inflammation
Anti-inflammatory activity of Punica granatum L. (Pomegranate) rind extracts applied topically to ex vivo skin.
We examined how the combination of pomegranate rind extract (PRE) and zinc impacts cold sores, particularly focusing on inflammation. By applying these substances to ex vivo porcine skin, we were able to assess their ability to modulate COX-2, a key player in the inflammation process.
Our findings revealed that the topical application of PRE significantly reduced COX-2 levels in the skin after just six hours and maintained this effect for 24 hours. When we combined PRE with zinc, the results matched those of PRE alone, indicating that zinc didn't add extra benefits to inflammation control when used together.
However, we also noted that zinc alone showed no significant anti-inflammatory effect, highlighting that the benefits we observed were primarily due to the pomegranate extract rather than zinc. This suggests that while zinc is commonly thought beneficial for treating cold sores, its impact on inflammation might be limited unless paired with more potent anti-inflammatory agents like PRE.
In conclusion, pomegranates present a promising approach to managing inflammation and pain associated with cold sores, but zinc’s standalone effectiveness requires reconsideration.
8
Zinc treatment helps cold sores
Recurrent herpes labialis: a pilot study of the efficacy of zinc therapy.
We aimed to understand how zinc might affect the occurrence and duration of cold sores, also known as herpes labialis. In our study, we treated 20 patients, mostly women with an average age of 26.6, who experienced more than six episodes of cold sores each year. They received zinc sulphate at a dose of 22.5 mg twice daily during specific months over a year while we monitored their symptoms for 12 months.
Our results were promising. Patients reported a decrease in the frequency of cold sore episodes, averaging fewer than four instances per year. Moreover, the duration of these episodes was also shortened to around 5.7 days, significantly less than usual for these conditions.
Thus, we can say that systemic zinc sulphate seemed to effectively reduce both the number of cold sore outbreaks and the recovery time. This suggests that zinc might be a beneficial option for individuals who struggle with recurrent cold sores.
9
Zinc cream alleviates cold sores
A randomized clinical trial on the treatment of oral herpes with topical zinc oxide/glycine.
We conducted a double-blind, placebo-controlled clinical trial to explore the effectiveness of a zinc oxide/glycine cream in treating cold sores caused by facial and circumoral herpes. By dividing 46 participants into two groups, one receiving the zinc treatment and the other a placebo, we aimed to measure how this formulation affected the duration and severity of cold sore symptoms.
Our results were quite promising! Participants who began using the zinc oxide/glycine cream within the first 24 hours of noticing symptoms experienced cold sore lesions that lasted only an average of 5 days, compared to 6.5 days for those on the placebo. Additionally, we noticed a significant reduction in the overall severity of their symptoms, including blistering, soreness, itching, and tingling.
As for side effects, subjects treated with the zinc cream experienced only minor and reversible issues typical of ionic zinc salt solutions. This indicates that the zinc oxide/glycine cream is not only effective but also safe for treating cold sores, presenting a valuable option for many people seeking relief from this common condition.
8
Zinc effective for cold sores
Topical treatment of recurrent herpes simplex and post-herpetic erythema multiforme with low concentrations of zinc sulphate solution.
We explored the effectiveness of low concentrations of zinc sulphate solution in managing recurrent cold sores. The study documented that applying zinc sulphate directly to the skin or oral mucous membrane showed promising results in preventing outbreaks of herpes simplex virus, which causes cold sores.
Specifically, we noted that a solution concentration of 0.025-0.05% for the skin and 0.01-0.025% for the oral area was used for treatment. Not only did this approach seem beneficial for active infections, but it also aided in stopping the recurrence of post-herpetic erythema multiforme—a condition related to past herpes outbreaks.
Overall, these findings are exciting for anyone struggling with the recurring pain and embarrassment of cold sores, as they suggest a relatively simple topical treatment could help reduce flare-ups. We believe this research paves the way for further discussions about using zinc sulphate as a viable option for managing such conditions effectively.
We explored the effectiveness of zinc treatments for cold sores, often caused by the herpes simplex virus. The research indicates that using zinc oxide or zinc sulfate, along with other interventions such as anesthetic or antiviral creams, can lead to a slight reduction in the duration of symptoms when applied promptly. However, its benefits appear small and may not outweigh other treatments available.
The study also highlighted the potential of oral antiviral medications in managing symptoms and preventing future outbreaks. While zinc treatment may offer some help, it is essential to understand that it is usually most effective when used alongside other therapies. As for using sunscreen to avoid triggers like sunlight, the results were mixed. In controlled settings, some protections were noted, but these weren't consistently replicated in everyday situations.
All in all, prompt treatment with either topical or oral medications is key for alleviating cold sore symptoms. We found that both approaches can help prevent future occurrences of cold sores, but we should be cautious in relying solely on zinc as a treatment option.
References
Ranjbar Z, Zahed M, Ranjbar MA, Shirmardan Z. Comparative study of serum zinc concentration in recurrent herpes labialis patients and healthy individuals. BMC Oral Health. 2020;20:296. doi:10.1186/s12903-020-01277-2
Houston DM, Bugert J, Denyer SP, Heard CM. Anti-inflammatory activity of Punica granatum L. (Pomegranate) rind extracts applied topically to ex vivo skin. Eur J Pharm Biopharm. 2017;112:30. doi:10.1016/j.ejpb.2016.11.014
Khozeimeh F, Jafari N, Attar AM, Jafari S, Ataie M. Comparative analysis of salivary zinc level in recurrent herpes labialis. Dent Res J (Isfahan). 2012;9:19. doi:10.4103/1735-3327.92922
Opstelten W, Neven AK, Eekhof J. Treatment and prevention of herpes labialis. Can Fam Physician. 2008;54:1683.
Femiano F, Gombos F, Scully C. Recurrent herpes labialis: a pilot study of the efficacy of zinc therapy. J Oral Pathol Med. 2005;34:423.
Singh BB, Udani J, Vinjamury SP, Der-Martirosian C, Gandhi S, et al. Safety and effectiveness of an L-lysine, zinc, and herbal-based product on the treatment of facial and circumoral herpes. Altern Med Rev. 2005;10:123.
Godfrey HR, Godfrey NJ, Godfrey JC, Riley D. A randomized clinical trial on the treatment of oral herpes with topical zinc oxide/glycine. Altern Ther Health Med. 2001;7:49.
Kneist W, Hempel B, Borelli S. [Clinical double-blind trial of topical zinc sulfate for herpes labialis recidivans]. Arzneimittelforschung. 1995;45:624.
Brody I. Topical treatment of recurrent herpes simplex and post-herpetic erythema multiforme with low concentrations of zinc sulphate solution. Br J Dermatol. 1981;104:191.