Many patients with gastrointestinal flu will experience fever because the cause of gastroenteritis is also viral infection. Gastrointestinal flu often has symptoms of upper respiratory tract infection and acute gastroenteritis, so it is common to experience fever. The symptoms often include fever, cold stomach, dizziness, headache, fatigue, soreness, as well as vomiting, abdominal pain, and diarrhea. It is not surprising that these symptoms include fever. It is recommended to drink more boiled water, take cold medicine as appropriate, and if vomiting or diarrhea is severe, anti-diarrheal medicine can be taken to relieve it. At the same time, pay attention to a light and easily digestible diet.