Three and a half year old children with fever-reducing drugs, fever-reducing suppositories do not go down fever can be through general treatment, physical therapy, causative treatment and other methods. The application of any antipyretic or antipyretic method to reduce fever, need a time and process, such as fever suggest timely medical attention, need to be clearly diagnosed after treatment. 1. General treatment: children in the fever must drink more warm water, can promote metabolism is conducive to fever, need to pay attention to avoid drinking cold water or carbonated beverages. 2. Physical therapy: medication can be combined with physical cooling, using warm water to wipe the forehead, armpits, groin and other parts of the blood vessels, each time to wipe 1~2 times, wipe 10~15 minutes, you can also take a hot bath, through the above physical methods to reduce temperature. 3. Treatment: If the fever is caused by infectious factors, such as bacterial infections, we can give amoxicillin clavulanate potassium and other anti-infective treatment as prescribed by the doctor; if it is a special pathogen such as mycoplasma infections, we can give azithromycin and other anti-infective treatment as prescribed by the doctor. Fever is a symptom and clinical manifestation of disease, many kinds of diseases can be caused, such as Kawasaki disease, infectious mononucleosis, etc. can lead to fever, it is recommended that parents take their babies to the pediatrics of regular hospitals, for examination and later diagnosis of the cause of the disease, and comply with the doctor’s instructions for treatment.