early 15c., from Middle French lesion, from Latin laesionem (nominative laesio) injury, from past participle stem of laedere to strike, hurt, damage, of unknown origin. Originally with reference to any sort of hurt, whether physical or not.
Most migraines last about 4 hours, but severe ones can last up to a week. How often they happen differs for everyone, but itâs common to get two to four headaches per month. Some people may get migraines every few days, while others get them once or twice a year.
Typical episodic migraine lasts from hours to several days. However episodic migraine can turn into CHRONIC MIGRAINE (transformed migraine) in many patients. Chronic migraine is characterized by headaches more than 15 days a month with at least 8 of the headaches having migrainous symptoms. Often other conditions are present: anxiety, depression, panic, fibromyalgia and sleep disorders. In brief: Usually 4-72 hours.