Close-up of a woman's shoulder and back, with water droplets on her skin, near a body of water on a sunny day.

Excessive underarm sweating

(axillary hyperhidrosis)

Underarm hyperhidrosis treatment with Botox is a non-surgical procedure used to reduce excessive sweating. It involves injecting small amounts of botulinum toxin just under the skin of the armpits, where it works by temporarily blocking the nerve signals that stimulate sweat glands. The treatment is quick, well tolerated, and typically performed with minimal discomfort. Results usually begin within a few days, with a significant reduction in sweating lasting around 4–6 months, after which the treatment can be repeated if needed.

Procedure time
30-60 minutes

Duration of results
4-6 months

Downtime
Minimal

FAQs

  • Botox works by temporarily blocking the nerve signals that stimulate the sweat glands. When these signals are reduced, sweating in the treated area decreases significantly.

  • The treatment is generally well tolerated. The injections are very small and superficial, and a numbing cream can be applied beforehand to maximise comfort if needed. Most patients describe only mild, brief discomfort.

  • Treatment typically takes around 30–60 minutes and is performed in clinic. You can usually return to normal daily activities straight away.

  • Results usually begin within a few days, with full effect seen within two weeks. The reduction in sweating typically lasts 4–6 months, after which treatment can be repeated.

  • Side effects are usually mild and temporary, such as slight redness, swelling, or bruising at the injection sites.

    Serious complications are rare when treatment is carried out by a qualified medical professional.

  • Compensatory sweating (increased sweating in other areas) is uncommon with underarm treatment and is much more frequently associated with surgical procedures.