Frown if you get migraines.

Now smile. Botox has been approved in Canada as a preventative treatment for debilitating headaches.

Health Canada has given doctors the green light to use Botox injections in adults who suffer from migraines 15 or more days a month.

Botox for chronic migraine is a serious matter.

The treatment involves injecting up to 195 units of Botulinum toxin A into seven muscles in the head and neck. Injections must be repeated about every three months to keep migraines at bay.

According to the World Health Organization, living with daily migraines can be more disabling than blindness, paraplegia or rheumatoid arthritis.

Women are three times more likely than men to suffer from chronic migraine, which may worsen with stress, poor diet and sleep habits, and overuse of pain medication recommended for headaches.

In two clinical trials funded by Allergan, patients who received Botox reported a total cumulative reduction in headache hours by 107 and 134 hours at 24 weeks, compared with 70 and 95 hours in patients treated with placebo.

**speak with your doctor about possible side effects