We all know that Botulinum toxin,widely known as Botox, is a prescription medicine that is injected into muscles to improve the look of moderate to severe crow's feet and the lines between the eyebrows in adults. Some of us might even know that this famous non-surgical cosmetic procedure has also proven to be very effective for other off-label uses like smoothing neckbands, for hyperhydrosis (excessive sweating) and for eye spasms. Who knew though that one day this toxin would be used as a migraine remedy. Yes, you read that right, Botox is now used to treat headaches.