Acute gastroenteritis can be divided into bacterial enteritis and gastroenteric flu. When this condition occurs, it is first necessary to conduct relevant examinations such as routine blood tests, C-reactive protein, and routine stool tests. After identifying the specific cause, targeted treatment can be administered. Generally, for mild acute gastroenteritis, treatment can be achieved through oral medication. If symptoms of severe vomiting and diarrhea are present, and normal eating is impossible, then infusion therapy is required. As for the duration of infusion therapy, it depends on the specific situation; generally, if it is not very severe, a complete cure can be achieved in two to three days. If the inflammation is more severe, and the patient is elderly, weak, or has underlying diseases, the duration of infusion therapy may be appropriately extended. (Please use medication under the guidance of a doctor.)