How long has the child had a fever, what is the highest temperature, is there any reason before the fever, in addition to fever, whether there is a cough, cough sputum, nasal congestion, runny nose, sore throat, chest tightness, shortness of breath and other symptoms, whether there is nausea, fatigue, nausea, vomiting and so on. It is recommended to monitor the change of body temperature. Body temperature above 38℃ can be treated with oral ibuprofen and anal application of indomethacin for antipyretic treatment. If the body temperature is 37.3-38 ℃, you can drink more water, warm water wipe forehead, armpits, thigh roots, etc. for physical cooling. Along with antipyretic treatment, it is more important to find the cause of fever. If the fever is recurrent, it is recommended to perform blood tests, chest X-ray, urine routine, stool routine, C-reactive protein and other tests to understand the cause of fever and target treatment.