Children with fever that does not go down may be related to influenza, Mycoplasma pneumoniae, Kawasaki disease, etc. First of all, symptomatic treatment (such as reasonable fever reduction) is needed, as well as assessment of the condition to determine the cause of the disease and treatment, such as influenza requires the use of oseltamivir phosphate treatment. 1. Symptomatic treatment: for these children, first of all, under the guidance of a physician, reasonable antipyretic, if the child’s body temperature does not exceed 38.5 degrees, can be taken to physical cooling treatment, such as lukewarm water baths, etc., if the body temperature is more than 38.5 degrees, then you need to follow the doctor’s instructions according to the weight of the child to give the appropriate dose of antipyretic treatment, such as ibuprofen or acetaminophen. 2. Evaluate the condition and treat the cause: If the fever does not go down due to influenza, antiviral treatment with oseltamivir phosphate is needed. Mycoplasma pneumonia may also cause fever to persist, and should be treated with antibiotics such as azithromycin. In addition, Kawasaki disease can also cause persistent fever in children, and the diagnosis requires treatment with aspirin and gammaglobulin. There may be other reasons for a child’s fever to persist. It is recommended that the child be seen by a specialist for evaluation and treatment.