There is no specific six kinds of Chinese patent medicines for dry mouth and bitter mouth, and the clinic needs to choose the medicines according to the symptoms, such as Xiao Chaihu Granules for half-expression and half-li syndrome, Easy Pill for liver-depression and spleen-deficiency syndrome, Longdian Diarrhea and Liver Pill for liver and gallbladder dampness and heat (dampness and heat evils are deposited in the liver and gallbladder), and Huanglian Xieyue Pill for gastric fire inflammation, and so on. 1. Half-expression, half-li syndrome: mostly due to external infection into the inside, the disease wanders between the surface and the inside, the clinical manifestations may have bitter mouth and dry throat, cold and hot, irritability, nausea, decreased appetite and other symptoms, can choose Xiao Chaihu Granules treatment. The adverse reactions and contraindications of Xiao Chaihu Granules are not clear. 2. Liver depression and spleen deficiency syndrome: mostly due to the emotions that lead to qi not smooth (the body’s gas does not run smoothly), which in turn affects the spleen and stomach transportation and digestion, appearing in the dry mouth and mouth bitter, the two coils of swelling and pain, stools are not shaped, irritability and anger and other symptoms, can be selected for treatment with Easy Pills. Adverse reactions and contraindications of Easy Pill are not clear. 3. Liver and gallbladder dampness and heat: mostly due to the dampness and heat trapped in the liver meridian, affecting the liver meridian excretion, burning fluid, triggering thirst and dry mouth, irritability, abdominal distension and pain, loss of appetite and other symptoms, can be selected gentian diarrhea of the liver pill treatment. Gentian Liver Pills adverse reactions are not clear, weak spleen and stomach should not be taken for a long time, pregnant women and stomach cold people need to be cautious. 4. Stomach fire inflammation: mostly due to food or external invasion of the stomach, resulting in inflammation of the stomach fire, bitter and dry mouth, tongue sores, acid reflux and other symptoms, can choose Huanglian Xieyue Pill treatment. Adverse effects of Huanglian Xieyu Pill are not clear, pregnant women and people with spleen and stomach deficiency (spleen and stomach weakness and cold) are prohibited to take. The causes of dry mouth and bitter mouth are many, need to be under the guidance of a professional physician to identify and treat, choose the appropriate medication, do not take medication without authorization.