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.
There are drugs, such as sumatriptan, and therapies, such as oxygen therapy, available which can significantly reduce the number and intensities of headaches. Each cluster can last from 15 minutes up to several hours - the majority of cases do not last more than an hour.