If a 12-year-old child has a fever of 38℃, it is a moderate fever. The child’s general condition is fine, you can carry out physical cooling at home, you can drink more boiled water, after drinking water, part of the heat can be taken away from the skin, can also be taken away from the urine. In addition, you can put on fever-reducing patches, and you can also take Chinese medicines to clear the heat. If the fever is above 39℃, oral antipyretics are needed. In addition, if the child’s fever, body temperature is high 38 ℃, but still appear mental condition is not good, lethargy, wake up to answer the question, vomiting, headache, or even convulsions, need to be highly suspicious of whether there is the occurrence of intracranial infections and other serious manifestations of the disease, you should immediately seek medical attention.