5 months baby frequent fever can be seen in neurological diseases, respiratory diseases, gastrointestinal diseases or urinary system diseases, intervention needs to be based on the cause, such as urinary tract infections need to be anti-infective and symptomatic fever reduction and other treatments. 1. Neurological diseases: such as bacterial meningitis, the baby can appear repeatedly fever, accompanied by depression, convulsions, etc., lumbar puncture examination can assist in the diagnosis, the treatment needs to be active use of antibacterial drugs (eg, cefotaxime) anti-infective treatment, the use of mannitol to lower the cranial pressure and symptomatic antipyretic, etc.. 2. Respiratory diseases: such as acute upper respiratory tract infection, the above manifestations can occur, mostly caused by viral infections, generally no special medication, fever need to be reasonable use of antipyretic drugs (such as acetaminophen) symptomatic antipyretic. 3. Digestive system diseases: such as bacterial infections caused by diarrhea, may appear the above symptoms, accompanied by diarrhea and vomiting, etc., the treatment needs to be reasonable antipyretic, the use of antibacterial drugs (such as cefaclor) anti-infective treatment, oral montelukast and other relief of diarrhea symptoms. 4 urinary system diseases: such as urinary tract infections, such babies may only manifested as repeated fever, perfect urine routine can be seen in elevated leukocytes, the treatment requires the use of antibacterial drugs (such as cefaclor) anti-infective treatment and reasonable antipyretic. 5. Other: such as hemophagocytic lymphohistiocytosis, frequent fever can occur, the treatment needs to use cyclosporine, dexamethasone and other drugs for chemotherapy. All of the above drugs should be used under the guidance of a physician, and it is recommended to actively consult a specialist to clarify the cause of the disease and treatment.