There isn't any effective way to cure the allergy in modern medicine. You may be disappointed after taking nutritions. But some drugs do relief the allergy. I personally do not like to take oral drugs sold in drug store, because I'm afraid of the side effects. I bought 鼻敏灵 from 协和医院 in Beijing, which is a kind of 滴鼻剂 and is effective. At least the side effect would be less since it doesn't go to your stomach and blood.