Pediatric fever recurring for three or four days does not go away should be taken according to the specific causes of treatment, such as infectious factors, non-infectious factors, clear diagnosis and then take medication, surgical treatment and other ways. 1. Infectious factors: viral, bacterial and other pathogenic infections can cause recurrent fever. (1) Viral infections are self-limiting and can be treated with antipyretic therapy for fever. For children with a fever of 38.5℃ or less, physical cooling can be adopted by using warm towels to wipe the hearts of the hands and feet, groin, armpits and other locations of the children; for children with a fever of 38.5℃ or more, antipyretic medications can be taken in accordance with the doctor’s instructions, such as ibuprofen and so on. (2) bacterial infection: bacterial infection need to take antibiotics to take anti-infection treatment, such as cefixime, amoxicillin, etc., and at the same time according to the temperature to take the above antipyretic treatment. 2. Non-infectious factors: hematological diseases, malignant tumors, and immune system diseases can also cause children’s fever to recur for three or four days, such as leukemia, malignant histiocytoma, rheumatic fever, Kawasaki disease, etc., should be taken in time to take the above antipyretic measures, malignant tumors should be taken to the surgical treatment, postoperative with chemotherapy, radiotherapy. Children’s fever repeated three or four days does not go away, should be taken to the hospital as soon as possible to improve the examination, under the guidance of the doctor to apply medication, not to be used indiscriminately, so as not to cause adverse consequences.