Botox is a drug made from a neurotoxin produced by Clostridium botulinum bacteria. It works by paralyzing muscles when injected in small doses by preventing nerve signals from reaching the muscles. While commonly used cosmetically to reduce wrinkles, Botox also has medical uses in treating conditions like eye squints, migraines, excess sweating, and leaky bladders. The injections carry few risks but may cause temporary side effects in rare cases.