Fever caused by gastrointestinal is usually a manifestation of aggravated symptoms of gastrointestinal flu and does not necessarily require medication. If the temperature of the fever is below 38.5℃, the main focus is on physical cooling; if the temperature of the fever is 38.5℃ or above, it should be treated with antipyretic medication. In addition, for patients with gastrointestinal flu, other medications should be taken for treatment. Physical therapy: 1. wet towel to cool down: you can use warm water to wet the towel and then wipe it on the patient’s neck and armpits; 2. ice to cool down: you can put an ice pack on the patient’s forehead, neck and armpits to cool down; 3. alcohol to rub the body to cool down: rub alcohol on the body, when the alcohol evaporates it will take away the heat of the body. Second, medication: 1, antipyretic drugs: including ibuprofen, acetaminophen, diclofenac sodium, aspirin, etc.; 2, drugs to regulate the intestinal tract: drugs to relieve diarrhea such as montelukast, drugs to regulate intestinal flora such as bifidobacterium lactis triptans, gentamicin, etc.; 3, drugs for the treatment of colds: such as nimesulide, pseudoephedrine, platelets, etc. It should be noted that the specific drugs should be used under the guidance of a doctor to avoid adverse reactions.