In case of nausea and diarrhea, acute gastroenteritis is usually considered clinically. Acute gastroenteritis is an acute infectious inflammation of the gastrointestinal tract. The common pathogens include bacteria, viruses, parasites, fungi, etc. In addition to nausea and diarrhea, patients are often accompanied by fever, abdominal pain, nausea and vomiting. Severe patients have more frequent diarrhea, which can be watery stool, even accompanied by mucus and pus. In this case, it is recommended that the patient should eat light food first, and avoid eating spicy and stimulating food. The commonly used drugs for drug treatment include montmorillonite powder, golden bifid, and whole intestines. For patients with fever and diarrhea, it is recommended to come to the hospital for routine stool and blood tests. Anti infection treatment should be given when necessary.