A four-year-old child with a fever of more than a week may be normal , or abnormal, depending on what kind of disease caused the fever. 1. Normal: If it is Kawasaki disease, refractory pneumonia, mycoplasma pneumonia, etc., the fever time will be more than a week, belong to the normal course of the disease, is normal. Fever for more than a week, if it is caused by Kawasaki disease, you can follow the doctor’s instructions to use immunoglobulin and aspirin treatment, can quickly reduce fever, prevent thrombosis and coronary artery disease; if refractory pneumonia, mycoplasma pneumonia and other serious infections, according to the specific circumstances of the doctor’s instructions to choose to improve the condition of drugs, such as glucocorticosteroids, immunoglobulin and so on. 2. abnormal situation: such as virus-induced upper respiratory tract infections, fever usually does not exceed one week, is not normal, may be combined with other diseases. Children with fever for too long or even more than a week should go to the hospital for standardized diagnosis and treatment as soon as possible to avoid delaying the condition.