Botox is best known for its ability to minimize wrinkles, but this popular injection has a number of uses that may surprise you. Botox, a drug made from a toxin created by certain bacteria, relaxes muscles and smooths wrinkles when injected into the skin in small doses. Botox works by blocking the signals between nerves and muscles, leading to less movement in the muscles. Botox has been approved by the FDA to treat several medical …