Yes, Botox is effective for this condition known as "hyperhidrosis". Be weary however, it is short lived result of a 3-4 months, and requires retreatment with Botox to keep this condition controlled. Recently, Botox has had a few "black box" warnings added to it's FDA label and these are worth reviewing before embarking on chronic recurrent treatment for this condition.

Alternatives to Botox include Drysol - Alum based solution, and iontophoresis. These treatments are not ideal for a variety of reasons.