Excess sweating, also known as hyperhidrosis, is a condition where sweat glands are over-active. The body normally sweats to regulate body temperature. In hyperhidrosis, however, the sweating is unnecessary and can be embarrassing. The most common areas affected are the scalp, forehead, underarms, hands and feet.
Botulinum toxin has been used in medical treatments for over 4 decades and was first approved by the Food and Drug Administration (FDA) for the treatment of wrinkles in 1989. It is now one of the most popular cosmetic treatments in the world. Injections of Botulinum toxin are commonly used to treat excessive sweating. The treatment involves small injections of the toxin to block the production of sweat. The treatment is done with numbing cream and the results last for approximately 4 months.