This product is a life saver. I never get sick anymore if I have this on hand. Have been using it for years. The moment I feel something in my throat a take a couple drops directly into the back of my throat and try to let it sit there for a bit to kill the bugs. Will repeat as necessary but try not to take too much. If I feel the germes trying to infiltrate my nose I put a tiny bit (less than 1/2 a drop on my pinky) and put it in my nose. Would probably be gentler to use a carrier oil as it stings a bit, but it works great. I like the idea of the oreganol inhaler for this but have never tried it. If you use this right away when you are coming down with something it works great. I would stay away from it or use very sparingly if I had any liver issues. Also can affect iron absorption short-term. I used it one time when I think I had some Salmonella poisoning. My stomach was suddenly becoming very bloated and was having diarrhea after handling chicken. I took a bunch of this (more than I should have by accident) and it put a stop to all of the symptoms immediately. If I was going to a third world country this would be one of my must-haves. Feeling the same way about heading into winter