Children’s body temperature has been persisting 38.5 ℃ should be taken promptly antipyretic treatment, at the same time to clarify the cause of the disease, for the cause of the treatment, such as infectious fever, non-infectious fever, after a clear diagnosis to take drugs or chemotherapy. Children’s body temperature has been persisting 38.5 ℃, parents should be timely application of antipyretic drugs, such as ibuprofen suspension, acetaminophen. At the same time, parents can use warm water to wipe the thigh roots, armpits and other locations to help dissipate heat. Also pay attention to the diet, you can give children more water to avoid dehydration. In addition, it is recommended to seek timely medical treatment according to the cause of the disease. 1. Infectious fever: bacterial infection, viral infection and other factors can cause fever in children. Bacterial infections require the use of antibiotics, such as cefuroxime, cefixime; viral infections have a certain self-limiting, if necessary, you can choose oseltamivir and so on. 2. Non-infectious fever: leukemia, lymphoma and other diseases can also cause fever in children, it should be a detailed examination to assess the condition, and decide whether to take appropriate chemotherapy for the primary disease. Children’s body temperature has been persisting 38.5 ℃ need to timely antipyretic, the above drugs need to follow the doctor’s instructions to apply. Causes of fever in children are very many, after the symptoms suggest timely consultation, clear diagnosis, so as not to delay the diagnosis and treatment of the disease.