When diarrhea occurs, both etiological treatment and symptomatic treatment are important, and painkillers and antidiarrheal drugs should be used with caution before the etiology is clarified, so as not to mask the symptoms and cause misdiagnosis and delay the condition. First, the etiology of treatment. 1, anti-infection treatment. Choose the appropriate antibiotics according to different conditions. 2. Other aspects. Lactose intolerant patients should not use dairy products, adults with celiac disease should be prohibited from eating wheat-based products, chronic pancreatitis can be supplemented with a variety of digestive enzymes, drug-related diarrhea should immediately stop using the relevant drugs. Second, symptomatic treatment. 1, general treatment. Correction of water, electrolytes, acid-base balance disorders and nutritional imbalance, supplementation of fluids, vitamins, amino acids, fatty milk and other nutrients as appropriate. 2, mucosal protective agents can be applied montmorillonite, aluminum thioglycollate, etc. 3, microecological agents can be applied bifidobacteria, which can regulate intestinal flora. 4, antidiarrheal agents. According to the specific situation, choose the corresponding antidiarrheal agents. 5, other aspects. Can use 654-2, atropine and other drugs with antispasmodic effect, but glaucoma, prostate hypertrophy patients, inflammatory bowel disease patients are used with caution.