Botox for migraines is an FDA-approved treatment that involves injecting small amounts of botulinum toxin into specific areas of the head and neck to prevent chronic migraines. This treatment works by blocking the release of chemicals involved in pain transmission, thereby reducing the frequency and severity of migraine attacks. Botox injections are typically administered every 12 weeks, providing relief for individuals who suffer from chronic migraines, defined as experiencing 15 or more headache days per month.