I was on a prescription seasonal allergy pill for ten years. As time went by, it appeared to be less effective. When I would ease back on the doses or quit taking it in winter (I live in the Midwest), my sinuses would plug up horribly and skin rashes would develop. If I got past those withdrawal effects, the itching would kick in. It was indescribable: constant, profound, affecting my sleep. No question, my body was addicted to the medication! I decided after much research to try quercetin as a natural alternative, to relieve these withdrawal symptoms and help me with my allergies moving forward. That was October 2018. The withdrawal symptoms lessened within the first couple days and within a month they were almost completely gone. When 2019 allergy season rolled around, I had an occasional drippy nose...after years of watery eyes and piles of tissues on a daily basis! I also used to get chronic upper respiratory infections, two or three every spring, and these, too, are in the past. I am not prone to long reviews, but I was inspired by other reviewers when choosing the NOW brand and felt I needed to pay it forward! I could never have predicted how much this supplement has improved my quality of life