Hyperhidrosis, or excessive sweating, can affect your everyday comfort and confidence.
At The Cosmetic Skin Clinic, we offer botulinum toxin injections to help manage excessive underarm sweating.
Hyperhidrosis treatments are available at our London, Buckinghamshire, Northampton, Bournemouth and Lymington clinics.
Speak to our team about your symptoms and whether treatment could be suitable for you.
Medically reviewed by the MDT Advisory Committee for The Cosmetic Skin Clinic, London and Bucks. Last reviewed on 1st September 2026.

Focal hyperhidrosis, the more common type, affects areas such as the hands, feet and underarms, often without a clear underlying cause. Generalised hyperhidrosis affects the whole body and may be linked to an underlying illness, hormonal changes or certain medicines.
Commonly used to treat wrinkles, botulinum toxin injections can also help manage excessive sweating. At The Cosmetic Skin Clinic, we treat underarm sweating only. We do not treat the hands or feet due to the associated discomfort, downtime and potential side effects.
Book your hyperhidrosis consultation at our London or Buckinghamshire clinic to discuss your treatment options.
Hyperhidrosis is a term for excess sweating and is treated with injections of botulinum toxin. This is an FDA-approved medicine that’s a muscle relaxant.
At The Cosmetic Skin Clinic, our experts administer a series of small injections in the armpit area during the procedure.
Botulinum toxin is a naturally purified protein that blocks the signals from the nerve endings to the sweat glands in the skin. This is used in the treatment of excessive sweating. This toxin is applied through micro injections into the skin targeting the sweat glands in the area which requires treatment. This safe procedure is proven to give dramatic and life-changing results for many who suffer from this condition.
It normally takes 5-7 days for the muscle relaxant injections to work.
You may need to repeat treatment for sweating approximately every 3-4 months. Your medical practitioner will give you all the advice you need.
Botulinum toxin has an excellent safety profile with over 2.5 million users to date across the UK, France, Italy, Spain and Germany. The doses are very small and the risks are minimal. If any do occur, they’re temporary.
Potential side effects may include:
Treatment usually takes around 15-20 minutes. There is no downtime and you can resume normal activities right away.
Many people find their procedure at The Cosmetic Skin Clinic more comfortable than expected. That’s because our medical practitioners are so highly skilled and precise. The injection procedure is simple to perform, you should merely feel a mild sting on your skin.
The price for the Hyperhidrosis treatment will depend on your individual needs, desired results and recommended treatment plan as well as your clinic location and chosen practitioner. Please take a look at our pricelist here or call us on 0371 705 2390 and our team will be happy to talk you through all prices and answer any questions you may have!
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