EXCESSIVE SWEATING
AISSELLES

Dernière mise à jour : 17 July 2026

Excessive underarm sweating

The primary axillary hyperhidrosis is the commonest localised form, causing excessive underarm sweating independent of temperature or exercise.
Often underestimated, it affects social, work or intimate life, confidence and quality of life. Wet clothes, visible patches, constant moisture and fear of judgement constrain daily life. Scientifically validated botulinum toxin, administered by an experienced doctor, provides local, lasting, natural control without disrupting overall temperature regulation.

Key facts about botulinum toxin for axillary hyperhidrosis

  • Indication: botulinum toxin for primary axillary hyperhidrosis.
  • Principle: temporarily reduced eccrine sweat-gland activity.
  • Session duration: around 20 minutes.
  • Anaesthesia: generally unnecessary; cream is possible.
  • Onset: 2 to 7 days after injection.
  • Peak result: around 2 weeks afterwards.
  • Duration: 4 to 6 months.
  • Sweat reduction: generally 80 to 90 %.
  • Return to work: immediate.
  • Sport: wait 24 hours.
  • Sun exposure: avoid for 24 hours.
  • Price: 600 CHF for the 1st vial of botulinum toxin, 350 CHF per additional vial.
  • Vial numbers: 1 to 4, most often 1-2.

Clinical study data on botulinum toxin for axillary hyperhidrosis

  • A multicentre randomised trial published in the New England Journal of Medicine found 94 % achieved at least 50 % sweat reduction four weeks afterwards, with average effects of 6 months.
  • Recommendations from the International Hyperhidrosis Society (IHhS) consider botulinum toxin the reference when local primary axillary treatments are insufficient, with high satisfaction.
  • A systematic review published in the Journal of the American Academy of Dermatology (JAAD) reports average 80 to 90 % reduction and significantly improved life quality and severity scores.
  • Publications from the American Academy of Dermatology (AAD) indicate onset within a week and duration of 4 to 6 months for most patients before retreatment.
Contents
  1. What is axillary hyperhidrosis?
  2. Botulinum toxin: treatment for primary axillary hyperhidrosis
  3. What happens during underarm botulinum toxin injections
  4. What should I do before underarm botulinum toxin injections?
  5. Botulinum toxin: safety, tolerance and contraindications
  6. Instructions after the session
  7. Results
  8. Prices
  9. Conclusion: underarm botulinum toxin
  10. Frequently asked questions about axillary hyperhidrosis

What is axillary hyperhidrosis?

Sweating maintains temperature, removes toxins and protects skin. Glands are distributed throughout, concentrated in armpits. Overactive glands produce unnecessary excess: primary hyperhidrosis. Usually idiopathic, without identified medical cause, it worsens with emotion, stress or fatigue. Unlike secondary forms, it is not hormonal, metabolic or neurological disease. Often starting in adolescence and persisting in adulthood, it is not serious but can be disabling.

photograph of excessive sweating symptoms

Botulinum toxin: treatment for primary axillary hyperhidrosis

Botulinum toxin, known for relaxing expression wrinkles, also effectively treats primary axillary hyperhidrosis. Inhibiting acetylcholine release temporarily interrupts communication between nerve endings and glands, reducing secretion. Local, reversible action preserves gland function and thermoregulation, modulating rather than simply blocking sweat without compensation elsewhere.
It can be occasional before a wedding, interview, conference or speech, or regular with twice-yearly sessions.

What happens during underarm botulinum toxin injections

After disinfection, intradermal injections follow a precise mapped grid at regular intervals, evenly targeting glands. Fine needles cause little pain, usually without anaesthesia or preparation.
No dressings or demanding care are needed. Immediate work and social activity is possible, usually with only mild temporary redness.
Injections take minutes. Anaesthetic cream around fifteen minutes beforehand may improve comfort, though ice for a few minutes usually suffices.

What should I do before underarm botulinum toxin injections?

Consultation confirms diagnosis, severity, emotional and functional effects and contraindications. The doctor evaluates secretion, triggers, aggravators and psychological experience. Further tests may exclude secondary causes. Areas, mechanism, duration, repeat treatment and limitations are discussed. Care is personalised.

Botulinum toxin: safety, tolerance and contraindications

Experienced medical administration is safe and well tolerated. Rare, temporary, mild redness, sensitivity or bruising may occur, without systemic action. Contraindications include pregnancy, breastfeeding, some neuromuscular disorders and toxin allergy. Reversible treatment adjusts to evolving needs and expectations.

Instructions after the session

Immediate daily, social and work activity is possible. Mild redness or bruising is discreet beneath armpits. Avoid friction and irritating perfumed deodorants or alcohol lotions on treatment day.

Results

Effects develop from around day four and peak between two and four weeks. Average 80 % reduction nearly eliminates patches and associated odour.
Patients regain clothing choice, anxiety-free interactions, confidence and physical, functional and emotional comfort, valuing control and freedom.
Duration is usually around six months, sometimes shorter initially.
Sweating returns gradually without rebound and injections can be repeated.

Prices

Personalised care matches severity. Price mainly depends on product quality: the first vial costs 600 CHF, additional vials 350 CHF. Consultation determines the precise amount, generally one to four vials.

Conclusion: underarm botulinum toxin

Botulinum toxin is a reliable, precise, non-invasive lasting solution for primary underarm sweating. Local nerve blockade preserves overall balance. Natural, progressive, reversible results respect physiology and restore comfort, social freedom and confidence.

Frequently asked questions about axillary hyperhidrosis

Can botulinum toxin really stop underarm sweating?

Yes, temporary nerve blockade significantly reduces sweat locally without changing general thermoregulation. Effects are targeted and reversible.

How long do underarm botulinum toxin effects last?

They develop during two weeks and generally last six to nine months, varying with metabolism and severity.

Is treatment painful ?

Fine-needle intradermal injections cause moderate, brief discomfort. Anaesthetic cream can improve comfort

Is botulinum toxin dangerous to health?

Medical doses administered by trained doctors are safe and well documented, with extensive evidence. Health authorities validate axillary use, which is widely recognised.

Are there contraindications to botulinum toxin?

Yes: pregnancy, breastfeeding, some neuromuscular diseases and known hypersensitivity, checked in consultation.

Is underarm sweating treatment permanent?

No. The body gradually degrades toxin and glands resume function. Repeat once or twice yearly as needed.

Can injections replace deodorants or local treatments?

Yes, for moderate to severe cases when deodorants, antiperspirants or iontophoresis fail or are poorly tolerated, providing lasting reduction without irritation.

Why choose botulinum toxin for axillary hyperhidrosis in Geneva?

Precise, non-invasive medical treatment without downtime works within days with controllable results: reliable, discreet, lasting relief from social and professional discomfort.

Is treatment reimbursed?

Comfort or aesthetic underarm botulinum toxin is not reimbursed by health insurance. Consultation provides a personalised quotation.