Infant diarrhea can be seen in gastroenteritis, lactose intolerance, etc., need to take drugs according to the cause of the disease, in the diet should eat more light, easy to digest food. 1. Gastroenteritis: commonly used drugs include intestinal mucosal protective agents, such as montelukast, microecological agents, such as bifidobacteria. If bacterial infection exists, antibiotic treatment is needed, such as amoxicillin. 2. Lactose intolerance: You can give your infant digestive enzyme preparations, such as lactase, under the guidance of a doctor. You can also change to hydrolyzed milk powder for your infant. In the diet more light, easy to digest food, avoid eating chili peppers and other stimulating food, drink more water to ensure adequate water intake. Be aware that medication must be used under the guidance of a doctor, do not blindly abuse drugs. Infant diarrhea may also have other causes, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.