Hyperhidrosis Treatment — Beyond Antiperspirants

Last updated: 5 March 2026

Understanding Hyperhidrosis

Hyperhidrosis — excessive sweating beyond what is physiologically necessary for temperature regulation — affects approximately 3% of the UK population. This condition can be profoundly distressing, impacting professional confidence, social interactions, and daily comfort. According to dermatological guidelines, hyperhidrosis is classified as primary (idiopathic) or secondary (caused by an underlying condition).

Aesthetic Treatment Options

Botulinum Toxin Injections

The most established aesthetic treatment for hyperhidrosis, botulinum toxin blocks the nerve signals that stimulate sweat glands. When injected into the affected area (typically axillae, palms, or forehead), it reduces sweating by 80 to 90%. Results last 4 to 9 months. NICE guidelines support its use for axillary hyperhidrosis when topical treatments have failed.

miraDry (Microwave Thermolysis)

This FDA-cleared device uses microwave energy to permanently destroy sweat glands in the underarm area. Two sessions typically reduce sweating by 80 to 90%. Because sweat glands do not regenerate, results are long-lasting. The procedure also reduces odour and underarm hair.

Iontophoresis

A non-invasive technique using a low electrical current passed through water to temporarily reduce sweat gland activity. Effective for palmar and plantar hyperhidrosis, it requires regular maintenance sessions.

Choosing the Right Treatment

Treatment selection depends on the affected area, severity, patient preference, and budget. Botulinum toxin offers reliable, repeatable results for most areas. miraDry provides permanent reduction for axillary sweating specifically.

Key Takeaways

• Hyperhidrosis affects 3% of the UK population and significantly impacts quality of life
• Botulinum toxin reduces sweating by 80 to 90% for 4 to 9 months
• miraDry offers permanent sweat gland destruction for underarm sweating
• Treatment should be tailored to the affected area and individual needs

Frequently Asked Questions

Is hyperhidrosis treatment covered by the NHS?

In some cases, botulinum toxin for axillary hyperhidrosis may be available on the NHS when other treatments have failed. Referral criteria vary by region.

Are the injections painful?

Numbing cream or ice is applied beforehand. Most patients describe mild stinging during injection. The procedure takes approximately 30 minutes.

Will stopping treatment cause rebound sweating?

No. When treatment wears off, sweating returns to its previous level — it does not worsen.

Medical Disclaimer: This article is for informational purposes only. Consult a qualified practitioner.