There are often two causes of fever in children: first, respiratory fever, such as upper respiratory tract infections, usually with symptoms of nasal congestion, runny nose or sore throat and mild cough. Usually need to take cold and flu drugs for treatment, such as Pu Di Lan anti-inflammatory oral solution or aminophenol pseudo-marijuana dispersible tablets. Lower respiratory tract infections have bronchitis or pneumonia, in this case, the general effect of oral drugs are not enough, need to be treated with infusion, according to the different bacterial infections and viral infections, the use of antibiotics or antiviral drugs for treatment. Second, digestive system diseases, the child will usually have abdominal distension, diarrhea, abdominal pain, indigestion, nausea, vomiting symptoms appear, need to go to the hospital to check the stool routine, distinguish between viral infections or bacterial infections, to take different drugs for treatment.