The glands which produce sweat are supplied by the same type of nerve ending that supplies muscles in the face which cause wrinkles. Using a very fine needle, small quantities of the Anti-wrinkle product (Botulinum Toxin A) are injected into 15 - 20 places about 1.5 - 2cm apart and spread evenly over the armpit so that as many sweat glands as possible are blocked. The product works by blocking nerve transmissions that stimulate the sweat glands, resulting in reduced sweating. An anaesthetic cream can be applied before the treatment to reduce discomfort. What areas can be treated? The underarms are the most common site where excessive sweating is problematic. The palms of the hands, soles of the feet and forehead can also be treated. How long does it last? You will notice a reduction in sweating within 4-5 days and results can last for 6-8 months.