Headache, rebound
Headaches experienced by those who have taken ergotamine or analgesic medications for migraines or other health conditions, and who have built up a tolerance for these medications.
Often the headache occurs right after the medication wears off.
Treatment is by using the medication less frequently, or switching to a different pain reliever.
Some patients with acute ergotamide rebound headaches find relief with injected phenothiazine or long-acting steroid medication