Imigran 10mg (sumatriptan) nasal spray is used to treat acute migraine attacks, with or without aura, in adults. Sumatriptan works by narrowing the blood vessels around the brain and reducing inflammation, helping to alleviate migraine symptoms such as severe headache, nausea, and sensitivity to light and sound. The nasal spray offers a quick and convenient way to administer the medication during a migraine attack. It is important to use Imigran as directed by your doctor, and it should not be used for migraine prevention but rather for relief once an attack occurs.