Treatment of Migraine

Chronic migraine (CM) is defined as headache > 15 days per month, of which at least eight headache days per month meet criteria for migraine without aura or respond to migraine-specific treatment (International Classification of Headache Disorders, second edition). Up to 5.1% of the general population suffers from this complication of migraine. CM is often disabling, interfering with work and school attendence. Treatment of CM can be very difficult, and is often complicated by overuse of pain medication