If a five-year-old child has recurrent fever, the treatment is as follows: a. The child’s disease has never been cured, so he or she will have recurrent fever. It is necessary to carefully identify the cause of the disease, conduct blood and related imaging examinations, and after perfecting the examination, give etiological treatment for the cause according to the child’s condition. At the same time of treatment, correct antipyretic methods are given, such as drinking water and physical cooling treatment in case of low fever, and oral antipyretic drugs are actively given in case of high fever, and intravenous infusion or intramuscular injection of antipyretic drugs are taken for treatment if necessary. Second, because of the poor immunity of children, so they will have repeated fever. The immune function of children should be improved, commonly used are oral pidomod oral solution, spleen aminopeptide oral lyophilized powder, and transfer factor oral solution. In addition to treating the cause and symptoms of pediatric diseases, we should improve the immune system of children. At the same time, in daily life, it is necessary to achieve a balanced and reasonable diet and ensure sufficient sleep to facilitate the cure of the disease.