Children with longer intervals between fevers suggest that the condition is improving and the treatment is effective, and the original treatment should be continued. For example, acute upper respiratory tract infections may appear as described above during the recovery period of the disease, and reasonable antipyretic and symptomatic treatments (e.g., anti-infective) should be continued. Fever is a common symptom in pediatrics and can be seen in a variety of diseases, such as acute upper respiratory tract infection. Urinary tract infections and Kawasaki disease, etc. When the disease is in the recovery phase or after the regular treatment and effective treatment can be prolonged intervals between fever, while the peak fever is also decreased from the previous. Because the treatment is effective, the treatment should be continued according to the original treatment program, avoid unauthorized discontinuation of medication, need to follow up, such as bacterial infection caused by acute upper respiratory tract infections in the oral cefaclor and the use of ibuprofen for the reasonable antipyretic treatment of the phenomenon described above, the need to continue the treatment. If the above phenomenon occurs after regular treatment of Kawasaki disease children (such as the use of gammaglobulin and aspirin), suggesting that the condition has improved, after the body temperature gradually normalized, need to adjust the aspirin dosage under the guidance of the physician. There are many causes of fever in children, and it is recommended that they be seen by a specialist for evaluation and treatment. All of the above medications should be used under the supervision of a physician, and avoid self-medication.