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Men's Health

Excessive Underarm Sweating Treatment for Men

Excessive underarm sweating is a medical problem, not a cosmetic one. It is assessed by an SMC-registered doctor, including the causes that need excluding before any treatment.

Clinician wearing gloves holding a handheld treatment device above the forehead of a man lying on a treatment couch.

Quick answer

Excessive sweating (hyperhidrosis) affecting the underarms is assessed first: whether it is primary or caused by something else, such as thyroid disease, medication or infection. Treatment options include topical treatment and botulinum toxin injections into the skin of the underarm, and the effect is temporary.

Verified by Dr. Anthony Stanislaus, MBBS, PBM, Cert. Men's Health · Last reviewed 13 August 2026 · Next review 13 February 2027

Medically reviewed by Dr. Anthony Stanislaus, MBBS, PBM, Cert. Men's Health

Last reviewed 13 August 2026 · Next review 13 February 2027

What it is

Hyperhidrosis means sweating beyond what the body needs for temperature control. Primary hyperhidrosis usually affects specific sites such as the underarms, palms or soles. Secondary hyperhidrosis is caused by something else, including thyroid problems, diabetes, infection, some medicines and, less commonly, more serious conditions.

That distinction matters, which is why this is a consultation rather than a treatment you book off a menu. Sweating that is new, one-sided, worse at night or accompanied by weight loss or fever is investigated rather than injected.

Options discussed at consultation

Topical treatment
Prescription-strength antiperspirant treatment is usually the first step, with instructions on how to use it correctly.
Botulinum toxin injections
Multiple small injections into the skin of the underarm reduce sweating for a period. The effect is temporary and the treatment is repeated. Session length and the plan for repeat treatment are set by your doctor at consultation.
Investigation
Where the pattern suggests a secondary cause, blood tests or further assessment come before treatment.

What it treats

  • Underarm sweating that soaks clothing and interferes with work or social life
  • Sweating that has not responded to over-the-counter antiperspirants
  • Sweating that is causing skin irritation or recurrent odour problems
  • Assessment of new or unusual sweating patterns that need a cause excluded

The procedure, step by step

Consultation first: pattern, triggers, duration, medicines and a review of causes that need excluding.

Where treatment is appropriate, the underarm is cleaned and mapped, and topical numbing is used where needed.

A grid of small intradermal injections is placed across the mapped area.

Aftercare is explained and a review is booked to judge the effect.

Results timeline

The effect on sweating is not immediate. It develops over days after treatment.

The effect is temporary and wears off, so the treatment is repeated. Results vary between individuals and cannot be guaranteed.

Downtime and aftercare

Pinpoint marks, mild tenderness and occasional bruising in the underarm. Most men return to normal activity immediately.

Avoid shaving the area, deodorant, sauna and heavy exercise for twenty-four hours. Report any weakness in the arm, spreading redness or unusual pain to the clinic.

Course and maintenance

This is a repeated treatment. The interval is set by how long the effect lasts for you rather than fixed in advance.

The interval before a repeat session, and whether topical treatment continues in between, are set by your doctor at review rather than fixed in advance.

What determines the cost

What moves the cost of treatment for excessive sweating is the number of areas treated, since underarms, palms and soles differ in the dose they need, and how often repeat treatment is required.

How we quote, and why we do not publish prices

Product and provenance

Botulinum toxin is a prescription-only medicine and is described here in generic terms. Brand names are not advertised, in line with the advertising rules for licensed clinics in Singapore.

The product used in your session is supplied through official distribution channels, and the product and batch number are recorded in your notes at the time of treatment.

Why patients choose Hisential for this

  • Every injection is performed by an SMC-registered doctor, not delegated.
  • Severity is assessed first, and simpler options are discussed before injections are offered.

How the personal health concierge works

FAQ

Frequently asked questions

Clear answers, written by our clinical team. Tap any question for its direct permalink, or reach out to your Personal Concierge for anything else.

  1. Is excessive sweating a medical condition?

    Yes. Hyperhidrosis is a recognised medical condition, and part of the consultation is checking whether it is primary or caused by something else.

  2. What is tried first?

    Usually prescription-strength topical treatment, used correctly. Injections are considered where that has not worked or is not tolerated.

  3. How long does the injection treatment last?

    The effect is temporary and wears off, so treatment is repeated. Your doctor will set expectations for you at consultation.

  4. Does it just move the sweating elsewhere?

    Treating one site does not treat another, and any change in your overall pattern is reviewed at follow-up.

  5. Who performs the treatment?

    Assessment and treatment are carried out by an SMC-registered doctor.

Still have a question?

Your Personal Concierge replies within one business day - confidentially.

Sources

  1. Health Sciences Authority, Therapeutic Products
  2. Singapore Medical Council

In line with the advertising rules for licensed clinics in Singapore, we do not publish before-and-after photographs or patient testimonials that imply a specific outcome. Results vary between individuals and cannot be guaranteed. Your doctor will set realistic expectations for your situation at your consultation.

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