Migraine is a neurological disease characterized by recurrent moderate to severe headaches often accompanied by autonomic nervous system symptoms. Migraines typically involve pulsating headaches affecting one side of the head lasting 2-72 hours. They are believed to be caused by genetic and environmental factors. Diagnosis is based on symptoms and tests can rule out other causes. Prevention focuses on medications, lifestyle changes, and surgery for those with frequent or severe migraines. Homeopathy provides effective treatment through constitutional remedies like Belladonna and Glonoine for specific migraine types.