Neurologists use Botox to help people with disabling muscle problems, and dermatologists use Botox to stop hyperhidrosis. It can be injected into the armpits, hands, feet, and face to help stop uncomfortable, embarrassing, and dripping sweat. Botox is a natural, purified protein that can temporarily block the secretion of the chemical in your body that is responsible for "turning on" your sweat glands. By blocking this chemical messenger, Botox "turns off" sweating at the area where it has been injected. Follow-up injections are required every seven to sixteen months (over a year!) to maintain dryness. The injections can be a little uncomfortable, but teens who‛ve had it done say it‛s not that bad and totally worth it. You can use clinical strength antiperspirants to keep you dry longer between visits to the doc.