Hi everyone
I believe botox can only be available through doctors (probably specialists only) - yup, it's the same thing that they use for wrinkles.
I found the following info from a US dr's website - hope it helps!
What causes underarm sweating?
Excessive sweating, or hyperhidrosis, is caused by stimulation of the sweat glands by nerve endings which descend from higher centers in the brain. These nerves respond to emotional stresses; like intimate social situations, public speaking, physical stresses, and increased body temperature that comes with exercise or hot humid weather.
Most people with excessive sweating are bothered primarily when they are emotionally stressed, physically active, or over-heated. Botox® can prevent sweating for months by blocking the release of the neurotransmitter, i.e., acetylcholine, from the nerve endings, that causes the glands to produce sweat.
What are alternative treatments?
Deodorants and antiperspirants.
Aluminum chloride hexahydrate and salts are used in topical antiperspirant sticks, creams, lotions and solutions. These prevent sweating by clogging the sweat ducts in the skin. These products can be irritating with continued use and are largely ineffective in people with excessive sweating.
Anticholinergic drugs and tranquilizers.
Oral medications currently used often provide relief but can cause dry mouth and blurry vision. Tranquilizers may minimize one's anxiety, but do little to diminish actual sweating.
Tap Water Iontophoresis.
Battery-powered electrical devices that use water, consist of a moist pad and a prickly electrical current held against skin for several hours. Although they decrease sweating in some people, they are time consuming and they need to be repeated on a daily or a weekly basis. Iontophoresis is mildly effective for severe cases.
Surgery.
Surgical alternatives include cutting the sweat glands from the skin of the underarms, therein leaving visible scars and permanent numbness of the skin for decreased sweating. Neurosurgeons now use a fiberoptic surgical tube, to cut nerves in the neck which lead to the axillary sweat glands, i.e. endoscopic sympathectomy. This approach includes the risk of possible nerve damage to structures in the neck which can result in paralysis of the arm, loss of sensation, and permanent dilation of the pupil of the eye. Cosmetic surgeons and dermatologists have attempted to scrape the underside of the axillary skin with liposuction cannulas to remove sweat glands and the results had been mixed.
How is Botox® given?
Fifteen to twenty drops of Botox® are injected via a very small needle into the hair-bearing skin of each underarm. Normal activity can be immediately resumed, while heavy exercise should be avoided for several hours.
When will Botox® take effect?
Underarm sweating will be decreased by 90% within 48 hours and full effect will be seen within one week. There may be simultaneous disappearance of odor associated with decreased sweating, but this is not consistent.
How long does Botox® last?
Most patients will obtain the benefit of dryness with one treatment of Botox® for six to ten months.
What are the risks and complications?
Complications from injection into the axillary skin include tiny bruises which fade in a few days, and small persistent areas of sweating that may need a second treatment. There is no risk of numbness or permanent change in the axillary skin, and the risk of temporary muscle weakness is remote.