1, the mental state is very good, body temperature of 38.5 ℃ or less, you can physically cool down, drink more water, also oral Chinese medicine to reduce fever, such as Xiao Chai Hu, taurine, etc.. 2.Poor mental state, or accompanied by headache, muscle pain and other discomfort, or body temperature of 38.5 ℃ or more, the application of ibuprofen, acetaminophen as appropriate to reduce fever, while paying attention to the hospital. 3, very poor mental state, accompanied by headache, vomiting, small infants show no crying, do not eat milk, skin blooming, etc., go to the hospital for examination as soon as possible.