Acute gastroenteritis is relatively common in clinical settings. Generally, if patients receive fluid therapy, it may be appropriate for about five to seven days. For treating acute gastroenteritis with fluid therapy, symptomatic treatment is typically chosen, including drugs that protect the intestinal mucosa, stop diarrhea, and regulate the intestinal flora. Of course, if the patient develops a fever, a small dose of anti-infection treatment may be appropriately added, but the treatment course should not be too long, generally three to five days would be suitable. Of course, we generally consider acute gastroenteritis to be a self-limiting disease. Patients can exhibit symptoms such as abdominal pain, bloating, nausea, vomiting, and diarrhea, typically frequent watery stools, but without bloody stools. Therefore, treatment is mainly symptomatic, so patients should not worry too much. (Use of medications should be under the guidance of a doctor.)