Three-year-old baby fever 38 degrees usually take physical cooling, drug cooling. 1. Physical cooling: you can use 20 ℃ -30 ℃ of warm water soaked towel, wet towel on the baby forehead wet compress, pay attention to every 3-5 minutes to change. In addition, you can use warm water to wipe the baby’s forehead, armpits, elbow, neck, groin, limbs and other large blood vessels flow through the place to help promote heat dissipation. The use of antipyretic patches is not recommended in general clinical practice. 2. Drugs to reduce temperature: If the baby has a history of febrile convulsions or persistent fever over 38.5 degrees Celsius, can be under the guidance of a doctor to ibuprofen suspension, acetaminophen and other drugs to reduce fever, need to be under the guidance of a professional doctor to use the drug. 3. Treatment of primary diseases: clinically there are many causes of fever in babies, such as Kawasaki disease, mycoplasma infections, etc., you need to consult a doctor in a timely manner, and follow the doctor’s instructions to actively treat the primary disease. If the baby fever 38 degrees, it is recommended that the physical cooling at the same time timely medical treatment, so as not to delay the diagnosis and treatment of the disease.