Unapiccolina (Irvine, Ca) on 01/14/2012:

I have had horrible allergies for 20 years and have taken just about everything. At the health food store I came across Quercetin & Bromelain. The Quercetin helps with histamine production. The Bromelain (comes from pineapple) helps with sinus swelling. If you are allergic to pineapple you shouldn't take this. Also Vitamin C helps the immune system.
I just wish someone had shared this with me 20 years ago. It took about a week to work for me, but I now wake up every morning without headaches, grogginess, stuffy nose, or puffy eyes. This is what I have been taking and it has been life changing!
Quercetin - 500 mg or more
Bromelain - 250 mg or more
Vitamin C - 1,000 mg
In researching Quercetin, I also found that it's naturally occuring in foods like black/green tea, red onion, apples, red grapes, tomato, cranberries, spinach, broccoli, carrots, strawberries, blueberries and pears. I have also been eating more of these items as well.
Hope this helps,
UnaPiccolina
Cleoppa (Santa Anna, Texas) on 10/31/2024:

Yes for quercetin. I've tried a variety of things over the years--ACV, honey, nettle tea. They all were dubious. Maybe they helped some or maybe the allergen just went away after a few weeks.
One day I was desperate and looked on here to try something new. I happened to have some quercetin so I tried that. It may have taken a few days to establish itself, but after that, I'd just take one 500 mg in the morning and one in the evening... when I needed it. If I had slight allergies, I'd take it. Otherwise, not necessary. During the worst allergy season, I would sometimes take 3 a day.
Still had some allergies, but it works much better than any natural or conventional medicine I've taken.