I don't know if you could cure it with those things. Hard to say. You did link that old person study a while back though, the one where they treated all the old fogies in the care home with antihistamines, and it seemed to help. I usually keep Benadryl around in case of allergic emergencies, but I have never actually taken it myself. When you and
@Gorilla Tessellator said it was "harsh" what do you mean? Can you describe that more.
Speaking of harsh I have found the 500mg of Quercetin very hard to take. I read it's found in coffee as well and may interact with similar receptors as caffeine. I was ok at about half the dose 250mg with a meal, I may break it down to 100mg per dose, and see if that's alright for daily regime. I feel spaced out on 500mg, sort of that caffeine high, stomach discomfort. Felt great the next day mind. If I take it with a huge meal and lower dose I don't notice anything though. I couldn't imagine taking 600mg.