The burdock is pungent, bitter and cold. It is a good choice for the most demanding of people who are looking for a good deal more than they can afford to pay. Efficacy: evacuation of wind heat, lung expectorant phlegm, benefit the pharynx through the rash, detoxification and elimination of swelling. Burdock does have a certain anti-renal proteinuria effect, but there is no obvious efficacy for kidney stones. Advice: On the other hand, burdock is a bitter cold medicine, bitter cold stomach, so whether it has no therapeutic effect, are not suitable for daily drink Oh.