Treatment for Excessive Sweating
Botulinum toxin for excessive underarm and palm sweating — a medical treatment, and a long-lasting one.
Hyperhidrosis is sweating beyond what the body needs for temperature regulation, and it is a medical complaint rather than a cosmetic one. Botulinum toxin blocks the chemical signal that activates the sweat glands in the treated area, which reduces sweating locally without affecting the body's ability to regulate its temperature elsewhere. Underarm treatment is straightforward. Palms are more uncomfortable to treat and a nerve block may be used. The effect here is markedly more durable than cosmetic treatment: six to twelve months is typical, against three to four for facial lines, so most patients are treated once or twice a year.
Medically reviewed by Dr. Sherwin Hariri, MD, Medical Director & Chief Longevity Physician. Last reviewed August 2026.
This page is for information only and is not medical advice. Suitability for any treatment is determined at consultation.
2 treatments
Underarm Hyperhidrosis
Treats excessive underarm sweating. Results typically last six to twelve months. Typically 100 units of Botox.
Brands
Botox · Dysport · Xeomin
Palm Hyperhidrosis
Treats excessive sweating of the palms. A nerve block may be used for comfort. Typically 100 units of Botox.
Brands
Botox · Dysport · Xeomin
Common questions
How long does treatment for sweating last?
Typically six to twelve months, which is considerably longer than cosmetic treatment of facial lines. Most patients are treated once or twice a year.
Will I sweat more somewhere else instead?
Treatment blocks the signal to the sweat glands in the treated area only. It does not impair your body's ability to regulate temperature elsewhere.
Is treating the palms painful?
The palms are more sensitive than the underarms and a nerve block may be used for comfort. This is discussed and agreed before treatment begins.
Not sure where to begin?
