Research suggests low magnesium levels in patients suffering migraine. What works for one patient may only put a dent in the problem for another. Almost universally, neurologists do not recommend use of over the counter medications for true migraines. Many contain caffeine and other ingredients that may help the patient over the initial migraine headache hump, but sets off a series of 'rebound headaches' that continue on after the migraine. Rebounds occur as the medication wears off, prompting patients to take more of the non-prescription drug, perpetuating an endless headache cycle.
Some headaches signal more serious, life-threatening conditions in the brain.
That's why frequent headaches really are a cue to have a thorough check up.