Dry mouth, bitter mouth, bad breath, mostly appear in the heat evidence, in traditional Chinese medicine, often due to the liver and gallbladder fire and heat rise to the oral cavity, mostly because of anger, anxiety and other emotional factors, resulting in stagnation of liver qi, aggravate the bitterness of the mouth. Clinical treatment is based on purging and diarrhea of liver and gallbladder fire, you can use gentian diarrhea pill as the basic formula to treat. In addition to medication, it can also be combined with dietary therapy and tea, such as lily and green bean soup, wolfberry and chrysanthemum soup, Xia Gu Cao bamboo leaf tea. Diet should be light, reduce spicy, stimulation, pay attention to regulating emotions, maintain sufficient sleep. In addition there is bad breath may suffer from inflammation of the gums, you can clean the mouth by way of scaling to reduce bad breath.