For patients with gastroenteritis, the first step is to find the cause of the disease and also to treat the symptoms. It is important to remove the cause of the disease. Often, patients suffering from gastroenteritis are caused by feeling wind and cold and eating unclean food. While treating the symptoms, it is important to consider different drugs for different clinical symptoms. For upper gastrointestinal symptoms, such as nausea, vomiting, and abdominal pain, drugs such as rabeprazole, aluminum-magnesium plus suspension, Huoxiang Zhengqi soft capsule, and Baohe pill are often used for treatment. For patients with lower gastrointestinal symptoms such as diarrhea, probiotic drugs or anti-diarrheal drugs such as montelukast are often used. If the patient has serious diarrhea, especially mucus stool, pus and blood stool, and the symptoms of unclean solution, it is best to go to the hospital to see a doctor, to consider whether there is a bacterial infection diarrhea, to take antibacterial drugs and rehydration treatment.