A 4-year-old child with fever of 38.5 degrees C should be treated with drugs and physical cooling methods in the following cases: 1st, if the child is above 38.5 degrees C, antipyretic and analgesic drugs should be applied for antipyretic treatment, commonly used drugs are ibuprofen, acetaminophen tablets, along with antipyretic patches, and for physical cooling, warm towels can be used to rub the baby’s forehead, bilateral armpits, feet, palms and groin; If the child’s temperature is below 38.5 degrees, you can apply antipyretic and antiviral drugs, such as Xiao Chai Hu granules, Ban Lan Gen punch, and Pediatric Aminophenol Huang Na Min granules. The 2nd and 4th year old children with fever are usually accompanied by coughing and coughing phlegm. Coughing and coughing phlegm are serious enough to give cough suppressing and expectorant drugs, such as pentoxifylline citrate and tranylcypromine hydrochloride, and usually eat more lung moistening and cough relieving fruits, such as pears, figs and loquats, and go to hospital for treatment in time when fever symptoms appear.