Ibuprofen is an emergency antipyretic medicine that can be applied in the form of ibuprofen granules or suspensions when the body temperature exceeds 38.5°C and emergency antipyretic treatment is needed. The dosage of ibuprofen pellets for 1-year-old children is: half a packet once, with a second dose at an interval of 4 hours, but the total amount should not exceed 4 times a day. Ibuprofen can only reduce high fever, what is the cause of high fever, need to check clearly, especially the pathogenic bacteria, viruses, bacteria or mycoplasma, only symptomatic treatment can solve the root of the fever problem. If it is a bacterial infection, cephalosporin anti-inflammatory drugs can be applied; if it is a viral infection, there is no special medicine; if it is a mycoplasma infection, azithromycin or roxithromycin can be used. At the same time, physical cooling should be given when the fever is high, and more warm water should be drunk to promote blood circulation and accelerate the excretion of toxins.