Liver qi stagnation and fire will cause dry mouth and tongue. Liver depression and fire (liver qi blockage leads to the production of fire and heat) refers to the stagnation of liver qi and internalization of heat, with distension and pain in the two hypochondriacs, burning heat, irritability, bitterness and dryness of the mouth, red tongue with yellow fur, and number of strings in the pulse as the common syndromes of the syndrome. Dry mouth and tongue can be seen due to liver depression and inflammation of liver fire. Liver depression and fire patients can take gentian diarrhea liver soup, gardenia free powder, angelica longhui pill and other drugs for treatment under doctor’s guidance. If have dry mouth and tongue or liver qi stagnation situation, should consult the doctor in time, after the traditional Chinese medicine practitioner to identify the evidence for treatment, do not take the medicine by yourself, to avoid causing adverse consequences.