Diarrhea generally refers to diarrhea, stomach well but still diarrhea may be the presence of ulcerative colitis, acute gastroenteritis, etc., can generally be treated with drugs. 1. Gastrointestinal dysfunction: the occurrence of this disease is generally related to biological, psycho-social, social and disease factors, patients usually appear nausea, vomiting, acid reflux, belching (belching), loss of appetite, indigestion, abdominal pain and other symptoms. Some patients may also appear after treatment of the stomach but still diarrhea symptoms, at this time you can consider the use of symptomatic drug therapy, such as montelukast, bile betel nut Vitamin B1 capsule and so on. 2. Acute gastroenteritis: generally due to intestinal infections, improper diet, cold and other causes of gastrointestinal mucosal inflammatory injury. Clinical manifestations are mainly abdominal pain, diarrhea, but also nausea, vomiting and so on. Some of these patients may also have the symptom of diarrhea even though their stomach has recovered after treatment. Anti-infective and anti-diarrhea drugs can be used, such as levofloxacin hydrochloride tablets, montelukast and so on. All of the above medications should be used under the guidance of a doctor, avoid self-medication to avoid adverse reactions.