I've been using Zhong Lian Bi Yan Pian for over 20 years now. This is the only stuff that clears my allergies without any side effects. My husband was going to an Acupuncturist and he told her about my horrible allergies and she recommended I start taking this. We couldn't believe it, after a couple of weeks I wasn't sneezing, no watery eyes, sinus pressure, etc.