If the patient does not have uncomfortable symptoms, it is usually not recommended to drink Flat Stomach San on a regular basis. However, if the patient does not want to eat, gastric and abdominal distension, diarrhea and other symptoms, then you can take Ping Gastric San, after the symptoms have been relieved, you can follow the doctor’s advice to stop using the drug. Ping Gastric San is from “Taiping Huimin Hejie Bian Fang”, which has the effect of drying dampness, transporting spleen, moving qi and harmonizing the stomach, and can be used for the treatment of dampness obstructing the spleen and stomach, inappetence, tastelessness, nausea, distension of the epigastrium (stomach and abdominal distension), frequent diarrhea, and heaviness of the limbs, and other diseases. The adverse reactions of Ping Gastric San have not been clarified, and those who are allergic to the ingredients of Ping Gastric San need to disable this formula; as this formula is hard, warm and dry, it should not be used by those with deficiency of yin and stagnation of qi, or weakness of the spleen and stomach. If patients do not suffer from the above mentioned symptoms, it is not recommended to drink Ping Qi San. However, if the patient has such discomfort symptoms, he/she can take Ping Qi San under the guidance of a doctor. After the symptoms have improved, the patient should stop taking the medicine according to the doctor’s instruction, so as to avoid taking too much of the medicine, which may cause adverse effects on the body. If the patient takes the drug during the abnormal discomfort, need to consult a doctor in time, do not self-medication, so as not to cause damage to the body.