The treatment of acute gastroenteritis should be based on the specific cause. For those cases caused by exposure to the cold or other reasons leading to gastrointestinal flu, the main treatment is antiviral and antidiarrheal. For infectious diarrhea caused by improper diet and other reasons, the treatment generally focuses on antibacterial and antidiarrheal measures. Generally, patients with mild acute gastroenteritis can still eat on their own, and other symptoms are not very severe, so they can be treated by taking oral medications. In more severe cases, such as significant vomiting and diarrhea, where the patient cannot eat, intravenous therapy may be necessary. In cases with severe symptoms such as dehydration, dry mouth, reduced urine output, and poor skin elasticity, hospitalization may be required.