Pain on one side of the head should go to the neurology department of the hospital, to clarify what type of headache, and then carry out the following treatments: 1, the most common type of headache is migraine, can be relieved by taking ibuprofen and so on such as painkillers, the etiology and pathogenesis of migraines, at present, is not particularly clear; 2, cerebral hemorrhage or cerebrovascular disease, this time, you can do a cranial CT to make a definitive diagnosis, cerebral hemorrhage only needs to be hospitalized immediately, the suggestion is that we need to control the blood pressure, control the blood pressure to the normal range, we need to eat lightly, pay attention to the quiet rest, to avoid the aggravation of the cerebral hemorrhage.