The fever in children is repeated for 3 days, mainly due to the invasion of viruses, bacteria, mycoplasma, chlamydia and other pathogens in the body, and inflammation is not controlled. 1, can be symptomatic treatment, for fever, you can feed more warm water, warm juice, appropriate for children to take pediatric Chai Gui antipyretic oral liquid, Blue Baicalin oral liquid, etc.; 2, the body temperature exceeds 38.5 degrees, you can use acetaminophen or 3, check the blood routine, if necessary, take respiratory secretions for pathogen culture and drug sensitivity test; 4, anti-pathogen treatment, such as anti-virus can choose to use ribavirin, oseltamivir and other drugs. Anti-bacterial can choose penicillin, amoxicillin, cefoperazone or azithromycin and other drugs.