Ping Ulcer San is mainly used for the treatment of peptic ulcer, chronic gastritis and reflux esophagitis caused by damp-heat in the spleen and stomach (the spleen and stomach feeling damp-heat evil qi). It is one of the commonly used proprietary Chinese medicines, mainly composed of Atractylodes macrocephala, Licorice, Cuttlebone, Atractylodes macrocephala, Phellodendron Bark and Sea Buckthorn, etc. It has the effects of strengthening the spleen and harmonizing the stomach (restoring the functions of the spleen and stomach), clearing away heat and dissolving dampness, and regulating the flow of qi. The adverse reactions and contraindications of Ping ulcer San are not clear. It should be noted that, during the period of taking Ping Wu San, avoid eating raw, cold, sour, spicy and other stimulating foods. In addition, if the patient is not feeling well, it is recommended to consult a doctor in time and use it under the guidance of a doctor to avoid delaying the condition or adverse reactions.