For acute gastroenteritis, the first step is to provide general treatment, which is to have the patient rest in bed as much as possible. For mild cases, oral rehydration solutions can be used to replenish lost fluids. If the patient has persistent vomiting or noticeable dehydration, they need to replenish with glucose-salt water or other relevant electrolytes. Patients should try to eat a light diet, consisting of semi-liquid foods, to prevent dehydration. Secondly, symptomatic treatment should be administered if necessary, including injections of antiemetic and antispasmodic medications, as well as antidiarrheal drugs. Thirdly, antimicrobial treatment, which is mainly targeted at infectious diarrhea, should involve the appropriate use of targeted antibiotics, but it is important to prevent their misuse.