FDA Clears First Device to Prevent Migraines.

The United States Food and Drug Administration (FDA) has granted STX-MED, a Belgian company, permission to begin marketing a headband-like, battery-powered device called Cefaly that can be worn to prevent migraines. The device is positioned in the center of the forehead and applies an electric current to the skin to stimulate branches of the trigeminal nerve, which has been associated with migraine headaches. Its developers believe it is in an important step in managing migraines.
U.S. Food and Drug Administration, March 2014