Botox works very well to decrease profuse underarm sweating. Studies have shown that the effect lasts between 6 and 7 months. Generally, 50 units of Botox is injected per axilla. The average cost for Botox is $10 to $14 per unit. Sometimes insurance companies will pay for the treatment if you can prove that other measures have failed. Discuss with a board certified plastic surgeon or dermatologist.Trey Aquadro, M.D.Auburn, AL
Generally, 100 units of Botox is used to stop sweating under both underarms, and this will cost about $1000. Some people can use about half that amount and still get significant improvement.