When a 3-year-old child has a fever, he can choose two kinds of oral antipyretic drugs: 1, when the body temperature is greater than 38.5 ℃ can be taken orally acetaminophen or ibuprofen composition of antipyretic drugs, choose one can; 2, when the body temperature is less than 38 ℃, antipyretic drugs can not be taken orally, you can drink more water with the use of warm water wipe way to physically reduce the temperature is good. At the same time to find the cause of the fever, the cause of fever in 3-year-old children is mainly respiratory tract infection, gastrointestinal tract infection or urinary tract infection, usually cause fever pathogens are viruses, bacteria or mycoplasma, according to the pathogenic infection selection of drugs, viral infections can be given antiviral drugs for treatment, the application of antiviral oral solution or oral ribavirin granules can be. If the infection is caused by bacteria, oral cephalosporin anti-inflammatory drugs such as cefixime, or penicillin anti-inflammatory drugs such as amoxicillin granules can be given. If it is caused by mycoplasma infection, oral macrolide antibiotics such as azithromycin granules or erythromycin granules can be given. Depending on the child’s symptoms, in addition to antipyretic drugs, medication can be administered according to the pathogenic bacteria.