18 months ago
Botox works by inhibiting a neurotransmitter, Acetylcholine, from being released. This happens to be the same neurotransmiiter used for moving muscles, and to produce sweat.
It shouldn't be the first thing you try for excessive sweating, but if everything else fails, it's great for underarms, hands, and feet.
Hands and feet are a little more painful and sometimes require blocks, but results are dramatic. About 100 units of Botox are needed to do the underarms (total for both), and the same for both hands.
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