Children’s fever may be due to upper respiratory tract infection, there may also be due to hyperthyroidism, there may be due to Kawasaki disease, different causes, different treatment methods. 1. Upper respiratory tract infection: Upper respiratory tract infection can lead to fever symptoms, treatment, if the temperature is below 38.5 ℃, warm water baths can be used to cool down the temperature; if the temperature is above 38.5 ℃, you can use acetaminophen, ibuprofen and other medications to reduce fever, in addition, there are bacterial infections, but also the use of amoxicillin and other antibiotic treatment. 2. Hyperthyroidism: Hyperthyroidism can also lead to fever in children, the treatment should be low iodine diet, but also take propylthiouracil, methylthiouracil and other drugs for treatment. 3. Kawasaki disease: Kawasaki disease, also known as pediatric cutaneous mucocutaneous lymph node syndrome, the disease can also lead to fever symptoms, treatment can be used aspirin, gammaglobulin, dexamethasone and other drugs for treatment. In addition to the above diseases, other diseases can also lead to fever symptoms in children, it is recommended to consult a doctor in time to find out the cause, so as not to delay the disease. The medication should be prescribed by the doctor.