Generally, the cause of children’s fever after a day of good fever, is due to the children’s disease has not been fundamentally control of the cause. There is a recurrence of the disease, in this case, children can use the following methods to improve: first of all, you can give children timely application of physical cooling methods, if the child fever but the mental state can still eat milk, eat something is also good. In this case, give the child timely drink more warm water and warm water to wipe the body can, continue to observe the child’s condition. Secondly, children should be given antipyretic drugs in time. If the fever of children is very high, more than 38.5℃ under the armpit, drugs such as ibuprofen or acetaminophen should be applied in time so that the fever can be well controlled. Then, children should be given timely application of anti-infective drugs, because some of the fever is caused by serious infections, it is necessary to give children timely application of antibiotics such as cephalosporin to regulate.