Unlike other headaches, the characteristic feature of migraine is that it interferes with daily activity and lowers your energy levels. Migraine often causes a pulsating headache on one side of the head, but occasionally it causes more diﬀuse or generalized pain in the front or back of the head. Migraine is commonly associated with dizziness, light and sound sensitivity, nausea and sometimes vomiting. Migraine attacks often last for hours and the pain gradually increases in severity over time if not treated. When migraine attacks occur infrequently (e.g. every 2 weeks), strong pain killers taken at the beginning of attacks is usually the treatment of choice. When the attacks become more frequent (e.g. more than 8 migraine days per month), it is time to start preventive treatment that will stop the attacks from coming and make them less painful.