If it is dry mouth, bitter mouth and bad breath caused by stomach fire, taking Clear Stomach Huanglian Pill can have some therapeutic effect. However, if it is deficiency fire, it has no obvious effect. Clear stomach and yellow pill belongs to a kind of proprietary Chinese medicine, the main ingredients in the drug include yellow rhubarb, gardenia, forsythia, rhubarb, asparagus and so on. This medicine can play the role of clearing stomach and cathartic fire (removing stomach fire) in clinic, mainly targeting the symptoms of mouth and tongue sores, gums, sore throat, dry mouth, bitter mouth, bad breath, hyperphagia, constipation and so on caused by blazing stomach fire. It should be noted that, avoid smoking, alcohol and spicy, greasy food; after taking the medicine, the number of stools 2 to 3 times a day, the amount should be reduced; more than 3 times a day, it should be discontinued and consult with a physician; after taking the medicine for 3 days, the symptoms did not improve, or aggravated, it should be immediately discontinued and go to the hospital for medical attention. The specific adverse effects of Qinggonglianwan are not clear, it is recommended to consult a doctor before using the drug.