The causes of dry mouth and bad breath are mostly found in stomach fire, damp-heat in the spleen and stomach (the spleen and stomach feeling damp-heat evil qi) and other causes. For those caused by stomach fire, it is suitable to be treated with Niuhuang Qingstomach Pill and Qingstomach Huanglian Pill. For those caused by damp-heat in the spleen and stomach, Huo Xiang Qing Stomach Pill is suitable for treatment. Qing Stomach Huanglian Pill has the effect of clearing stomach fire, detoxifying and eliminating swelling, and is mostly used for treating mouth and tongue sores, gums, sore throat and other conditions. Niu Huang Qing Stomach Pill has the effect of clearing stomach and laxative fire, moistening dryness and laxative effect, and is used for the treatment of heart and stomach fire, dizziness, sores on the mouth and tongue, swollen and painful gums, sore throat of milky moth (related to tonsillitis in western medicine), constipation and red urine and other conditions of conditioning. With the effect of clearing away heat and dampness, awakening the spleen and eliminating stagnation, Pogostemon Clearing Stomach Pill is mostly used in the treatment of bitter mouth, halitosis, dyspepsia and other conditions caused by dampness and heat in the spleen and stomach. It is not recommended for pregnant women. It is not suitable for those with dry mouth, red tongue, hot hands and feet. The adverse reactions of the above drugs are not clear. Avoid smoking, alcohol and spicy food. It is not suitable to take tonic Chinese medicine at the same time during the period of taking the medicine. Allergic to the drug is prohibited, allergic people should be cautious. If the patient is not feeling well, it is recommended to consult the doctor in time, and it is recommended to choose the suitable medication to regulate the patient according to the different conditions of the patient’s own condition.