How Botox is Used to Treat Migraines

Botox to treat migraines is given every 3-4 months as multiple injections around the head and neck to try to dull future headache symptoms.

The FDA says it's important that patients who suffer chronic migraines discuss with their doctors whether Botox is appropriate for them.

Allergan Inc., the maker of Botox, says in a statement that the FDA's approval applies to people with chronic migraine, which it defines as a "distinct and severe neurological disorder characterized by patients who have a history of migraine and suffer from headaches on 15 or more days per month with headaches lasting four hours a day or longer."

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