Botox injections are shots that use a toxin to prevent a muscle from moving for a limited time. These shots are often used to smooth wrinkles on the face. They’re also used to treat neck spasms, sweating, overactive bladder, lazy eye and other conditions. Botox shots also may help prevent migraine. The medicine in Botox injections is a form of purified botulinum toxin used by licensed health care providers that meet medical control standards. These standards were approved by the U.S. Food and Drug Administration. As a rule, bacteria toxins are used for medical purposes.