Botox® for chronic migraines
Botox can prevent chronic migraines. The effects can last 3 months. It is covered by most insurances. It is currently the only FDA-approved medicine for preventing chronic migraine. People with the most frequent migraine appear to see the best results with Botox treatments. In clinical studies, Botox reduced headache days by 50% over 6 months for chronic migraine sufferers. It is not completely known how Botox reduces headache pain and stiffness. A potential reason might be that Botox blocks nerves that send pain messages to the brain and relaxes muscles so they are less sensitive to pain.
What are chronic migraines?
The following are criteria for chronic migraines:
- 15 or more headache days per month (at least 8 of whichare associated with migraine)
- Headaches or migraines occur on at least half of the days per month
- Each headache day lasts 4 hours or longer
- Pain is often more severe