Botox for excessive sweating is a non-surgical treatment for localized hyperhidrosis. It is most often used in the underarms and sometimes on the palms or soles. The goal is to reduce the activity of the sweat glands in the treated area, so that daily life is less affected by dampness.
Botulinum toxin is injected into the skin with very fine needles at several evenly spaced points across the area. It temporarily blocks the nerve signal that stimulates the sweat glands. A local anesthetic or cooling may be used to ease discomfort, and general anesthesia is not needed.
A session usually takes 20 to 30 minutes, and most patients return to their normal activities on the same day. The effect begins within a few days, usually reaches its full effect within one to two weeks and lasts roughly four to nine months. The session can then be repeated when needed, as decided with the treating doctor.
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It noticeably reduces sweating in the treated area for most patients, which eases dampness, odor and problems with clothing. It involves no surgery and little or no downtime. The response varies from person to person.
It suits people with bothersome localized sweating that topical antiperspirants did not control. It is usually not recommended during pregnancy or breastfeeding, with some nerve or muscle disorders, or in case of allergy to its ingredients. The doctor decides after an examination.
You may be asked to shave the area about a day beforehand, following your doctor's instructions, and to share your medications and health history. Never stop a prescribed medicine on your own, including blood thinners; that decision belongs to your doctor.
The area is cleaned and the injection points are marked. The doctor then injects the Botox into the skin with a thin needle at several points, which usually takes only a few minutes.
It may cause a sting or mild to moderate pain, especially on the palms and soles. A local anesthetic or cooling eases this, and general anesthesia is not needed.
No long recovery is needed. Mild redness or a small bruise may appear at the injection sites. It is wise to avoid rubbing the area, intense heat and strenuous exercise for a short period set by the doctor.
Sweating begins to decrease within a few days, and the full effect is usually reached in one to two weeks. It lasts roughly four to nine months, after which sweating gradually returns and the session can be repeated if needed.
The most common are pain or bruising at the injection site. Temporary weakness of the hand muscles may occur when the palms are treated, and sweating may occasionally increase in other areas. Allergy is rare, and the doctor explains these possibilities.
One session usually lasts several months, but the effect is temporary, so repeat sessions are needed to maintain the result. The doctor determines the suitable interval according to your response.
Travel is often possible the same day or the next day unless unusual symptoms appear. The doctor confirms this after the session.
