I suffer from severe hay fever every year and December seems to be the worst month. Even at double the standard dose, there are some days where antihistamines seem to barely help. Out of desperation, I added this supplement to my regime. I\'ve been taking one capsule, twice per day, as directed. I found there is a small but noticeable benefit in clearing up my sinuses. I\'m not sure if it\'s had any impact on eye symptoms, as my antihistamine takes care of that. It makes absolutely no difference to the itchiness in the roof of my mouth, which for me is the worst hay fever symptom to cope with.