Fever and headache are very common, and there are many reasons for fever and headache. 3.Intracranial infection, in addition to fever and headache, accompanied by nausea and vomiting, still have headache after fever reduction, need active anti-infection and cranial pressure lowering treatment. 4.Low immunity, will often appear fever, headache, can participate in appropriate exercise, eat more fruits and vegetables to improve immunity, fever and headache need to pay attention to rest, active Find the cause and treat it symptomatically.