There is no basis for the treatment of dry mouth prescription, dry mouth with external wind-heat, yin deficiency fire (Yin essence deficit in the body, there is a deficiency of fire), viscera heat, etc., commonly used pungent cool antidepressant, yin and clearing heat medicine, clearing the viscera heat medicine, etc. treatment. 1. Pungent and cool antidotes: for external wind-heat caused by dry mouth and thirst, sore throat and cough and other symptoms, often using Yin Qiao San. Its adverse effects and contraindications are not yet clear. 2. Nourishing Yin and clearing heat medicine: used for the treatment of yin deficiency and fire caused by dry mouth, less fluid, sore throat, heart tinnitus and other symptoms, often using Zhi Bai Di Huang Wan. Its adverse reactions and contraindications are not yet clear. Pregnant women should take with caution. 3. Clear internal heat medicine: used for dry mouth, bitter mouth, mouth and tongue sores, as well as fever and other symptoms, often use gentian diarrhea liver pill. Its adverse reactions and contraindications are still unclear. Pregnant women, the elderly and frail, and people with loose stools should be cautious. If medication is needed, it should be guided by a doctor for diagnosis and should not be taken on its own to avoid adverse effects on the body.