Gastrointestinal cause fever, such as fever more than 38.5 ℃ patients, it is recommended to oral non-steroidal antipyretic analgesic anti-inflammatory drugs to lower the temperature, assisted by physical cooling, and at the same time, need to be further examined to confirm the diagnosis of gastroenteritis causes, the cause of the treatment. Fever caused by gastroenteritis is mainly due to infection, which includes viral and bacterial infections. When patients have severe fever symptoms, they should be cooled down first, and then treated for the cause. Cooling measures include oral non-steroidal anti-inflammatory drugs, such as aspirin, sodium salicylate, etc., and assisted by physical cooling, such as warm water or alcohol baths. Adverse effects of NSAIDs include gastrointestinal discomfort, headache, coagulation disorders, and allergic reactions. It should be noted that the drug is contraindicated in active peptic ulcers, allergy to nonsteroidal antipyretic and analgesic drugs, hepatic and renal insufficiency, patients with severe hypertension and congestive heart failure, people with reduced blood counts, and pregnant and lactating women. If the patient’s fever symptoms are severe, or the symptoms persist and do not improve, it is recommended to consult a doctor in time, under the guidance of the doctor for targeted treatment. Please do not take the drug by yourself to avoid delaying the condition.