Excessive perspiration, or hyperhydrosis, can be a serious nuisance and give rise to significant social embarrassment. Excessive sweating in the underarms area can be dramatically reduced with injection of botulinum toxin type A. Sweaty palms and feet can be treated with a process called iontophoresis.

The underarms procedure entails coating the area to be treated with iodine.  Once the area is dry, powdered starch is dusted over it to allow for the identification of sweat glands. Using a very fine needle, the sweat glands are injected with botulinum toxin type A. The procedure causes minimal discomfort and its effects last for up to 3-6 months.