Researchers say Botox works by being injected into the affected area. The treatment inhibits the skin's ability to produce sweat, but only in the immediate area of the injection. Botox is not a permanent treatment. It usually wears off in six to nine months and must be re-injected. Doctors aren't sure of the exact cause of hyperhydrosis.
Some people suffer for no apparent reason.
People who have the condition may have it in the armpits, hands, feet or some combination. Current treatments provide some level of benefit, but none is risk-free or without side effects. Subjects will receive medication or placebo via injections. To qualify, you must be 18 to 75 years old and have excessive underarm sweating. Qualified participants will receive study medication at no charge and evaluation and assessment at no charge.