Low fever, diarrhea and vomiting are mostly considered as acute gastroenteritis. There are several types of acute gastroenteritis in the clinic, the most common being infectious diarrhea, which is divided into bacterial and viral infections. Patients with acute gastroenteritis should use medication under the guidance of a doctor and avoid taking medication blindly. About 50% of infectious diarrhea is a viral infection, which is self-limiting and lasts about 3-5 days, and adults with strong resistance can recover on their own. The use of antibiotics can aggravate the disease and should be treated symptomatically. The specific medication should be combined with the clinical situation and guided by the doctor’s interview.