Hyperhidrosis is a common condition in which a person sweats excessively and refers to any abnormal sweating, such as sweating when it’s not hot. Sweating is controlled by the brain, which sends signals along nerves called “sympathetic nerves” to the small sweat glands in the skin. These nerves are part of the “autonomic nervous system” which controls many unconscious body functions.

Botulinum Toxin works by blocking the nerves responsible for activating your sweat glands. Normally, your nervous system activates your sweat glands when your body temperature rises. This is how your body automatically cools itself. In people with hyperhidrosis, however, the nerves that signal the sweat glands are overactive.

When you receive Botulinum Toxin injections directly into the area of your body that commonly sweats, your overactive nerves are essentially paralyzed. When your nerves can’t signal your sweat glands, you don’t sweat. However, Botulinum Toxin only prevents sweating in the specific area where it’s injected.

Procedure time

30 mins




None required

Recovery time



6 – 12 months



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