Axillary Hyperhidrosis Treatment

4,000+ Hyperhidrosis Surgeries Performed

30+ Years of Specialized Experience

Excessive underarm sweating — clinically known as axillary hyperhidrosis — affects millions of people and goes far beyond the reach of ordinary deodorant. At the Center for Hyperhidrosis at Columbia University Medical Center, we offer every proven treatment option, from prescription antiperspirants to permanent in-office procedures, so you can find relief that fits your life.

Axillary hyperhidrosis (excessive underarm sweating) is a medical condition caused by overactive sweat glands. It is highly treatable through a range of options including prescription-strength antiperspirants, oral medications, Botox® injections (which last 6–12 months), and miraDry® (a permanent, FDA-approved in-office procedure that uses electromagnetic energy to eliminate underarm sweat glands). The right treatment depends on the severity of sweating, personal preferences, and response to prior treatments. The Center for Hyperhidrosis at Columbia University Medical Center in New York City offers all available axillary hyperhidrosis treatments and can help identify the best approach for each patient.

What Is Axillary Hyperhidrosis?

Axillary hyperhidrosis is a medical condition characterized by excessive sweating of the underarms that occurs independent of heat or physical activity. It is one of the most common forms of hyperhidrosis, affecting an estimated 1–3% of the population — and for the people who have it, its impact on daily life is rarely proportionate to how simple it sounds.

Wet patches that appear before a meeting has started. Clothing choices dictated by what hides sweat. The low-level, constant awareness of whether people can see or smell it. These are not minor inconveniences — they are daily realities that affect confidence, relationships, and professional life.

The good news: axillary hyperhidrosis is one of the most straightforwardly treatable forms of hyperhidrosis. Highly effective options exist at every level of intervention, and the vast majority of patients achieve significant relief.

What Causes Excessive Underarm Sweating?

1. Primary Axillary Hyperhidrosis

In primary hyperhidrosis — the most common type — the sympathetic nervous system sends overactive signals to the eccrine sweat glands in the underarm, causing them to produce far more sweat than the body needs for temperature regulation. There is no underlying medical cause; the nervous system is simply overactive in this specific area. Primary hyperhidrosis often runs in families, with up to 50% of patients having a first-degree relative with the same condition.

2. Secondary Axillary Hyperhidrosis

Secondary hyperhidrosis is caused by an underlying condition — such as thyroid dysfunction, menopause, diabetes, or certain medications. Unlike primary hyperhidrosis, secondary hyperhidrosis often causes sweating across the entire body rather than in a single localized area, and tends to occur during sleep as well as waking hours. Identifying which type you have is an essential first step in choosing the right treatment, and one our clinical team evaluates carefully at the initial consultation.

How Is Axillary Hyperhidrosis Diagnosed?

Diagnosis begins with a clinical evaluation. Our team — which includes both board-certified dermatologists and a thoracic surgeon — will review your medical history, the pattern and severity of your sweating, and any treatments you’ve already tried.

The Minor Iodine-Starch Test is sometimes used to map the distribution of sweating accurately: iodine is applied to the underarm, followed by starch powder, which turns dark blue or purple in areas of active sweat production. This helps define the treatment zone precisely, particularly for miraDry® or Botox® injections.

Severity is also assessed using the Hyperhidrosis Disease Severity Scale (HDSS), a validated tool that rates how much hyperhidrosis affects daily activities. A score of 3 or 4 (“sweating is barely tolerable” or “sweating is intolerable”) typically indicates a candidate for more definitive treatment.

Treatment Options for Axillary Hyperhidrosis

We approach axillary hyperhidrosis treatment in a stepwise fashion: starting with the least invasive options and progressing based on your needs, preferences, and response to treatment. There is no single right answer — but there is almost always an effective one.

Step 1: Prescription-Strength Antiperspirants

Best for: Mild to moderate axillary hyperhidrosis as a first-line intervention.

For many patients with mild to moderate axillary hyperhidrosis, a prescription-strength antiperspirant is the most appropriate first step. Unlike over-the-counter products, prescription antiperspirants contain higher concentrations of aluminum-based compounds that physically block sweat ducts, significantly reducing sweat output.

They are applied at night to dry underarm skin and washed off in the morning. Initial skin irritation is common but usually resolves. When used consistently and correctly, prescription antiperspirants produce meaningful improvement for a large proportion of patients.

We guide patients through selection and application techniques to maximize effectiveness.

Antiperspirants for hyperhidrosis

Step 2: Oral Medications (Anticholinergics)

Best for: Patients with multiple areas of sweating, or as a bridge treatment.

Oral anticholinergic medications work by blocking the nerve signals that stimulate sweat glands throughout the body. They can be effective for patients with generalized hyperhidrosis or for those who want a systemic option while pursuing other treatments.

Common medications in this class include glycopyrrolate and oxybutynin. Side effects — including dry mouth, blurred vision, and urinary changes — limit their use for some patients, but lower doses used topically or systemically are often well tolerated.

Hyperhidrosis medication

Step 3: Botox® Injections for Underarm Sweating

Best for: Patients seeking significant, reliable relief without a permanent procedure. Ideal for those with moderate to severe axillary hyperhidrosis.

Botox® (botulinum toxin) injections are one of the most well-established treatments for axillary hyperhidrosis and are FDA-approved for this indication. When injected into the underarm skin, Botox® temporarily blocks the neurotransmitter signals that activate sweat glands, dramatically reducing sweating in the treated area.

The procedure typically takes 15–30 minutes in the office. A fine grid of small injections is made across the underarm area — a topical numbing cream is applied beforehand to maximize comfort. Results typically appear within one to two weeks and last between 6 and 12 months, after which the treatment can be repeated.

Botox® for hyperhidrosis is highly effective, well-tolerated, and carries no risk of compensatory sweating. It is an excellent option for patients who want significant relief without a permanent procedure, or who want to evaluate their response before committing to a longer-lasting treatment.

Botox® for Hyperhidrosis

Step 4: miraDry® — Permanent Underarm Sweating Treatment

Best for: Patients seeking significant, long-lasting reduction in underarm sweating without surgery.

miraDry® is the most significant advance in axillary hyperhidrosis treatment in recent years and represents the most definitive non-surgical option available. The procedure uses precisely controlled microwave (electromagnetic) energy to permanently eliminate the sweat and odor glands in the underarm — and because sweat glands do not regenerate, results are lasting.

The underarm area accounts for less than 2% of the body’s total sweat glands, so their elimination has no meaningful impact on the body’s ability to regulate temperature. Importantly, miraDry® does not carry a risk of compensatory sweating, which distinguishes it from surgical options.

The Center for Hyperhidrosis at Columbia was one of the first centers in the New York metropolitan area to offer miraDry®, and our team has extensive experience achieving consistent, high-quality outcomes.

miraDry® Treatment NYC

How to Choose the Right Treatment

The right axillary hyperhidrosis treatment depends on several factors that our team evaluates together with you during your consultation:

  • Severity of sweating: Mild sweating may respond well to prescription antiperspirants, while moderate to severe sweating typically warrants Botox® or miraDry®.
  • Preference for a permanent solution: Patients seeking a long-term reduction in underarm sweating are often best served by miraDry®, while those who prefer a temporary or reversible option may prefer Botox®.
  • Lifestyle and downtime considerations: miraDry® typically involves 1–2 days of mild swelling and tenderness, while Botox® involves essentially no downtime. Both treatments are performed in the office.
  • Previous treatment history: Patients who have tried and failed prescription antiperspirants and/or Botox® are often strong candidates for miraDry®.
  • Insurance coverage and cost: Coverage varies depending on the treatment and your insurance plan. Our team can help you understand your options before committing to a treatment plan.

If you’re unsure where to start, the most useful next step is a consultation—not because the decision is complicated, but because having all the information in one place, from a team that offers all available options, usually makes the path forward clear very quickly.

Why Choose the Center for Hyperhidrosis at Columbia?

The Center for Hyperhidrosis at Columbia University Medical Center has been dedicated exclusively to the evaluation and treatment of hyperhidrosis for more than three decades. Our multidisciplinary team has treated thousands of hyperhidrosis patients and performed more than 4,000 ETS procedures. We are one of a small number of centers in the country that offers every available treatment option, allowing us to recommend the approach that is best for each patient—not simply the treatments available within a single practice.

  • Multidisciplinary expertise: Every patient is evaluated by board-certified dermatologists and an experienced thoracic surgeon.
  • Extensive miraDry® experience: Among the first centers in New York City to offer miraDry®, with consistently high patient satisfaction.
  • Nationally recognized surgical expertise: The Center for Hyperhidrosis has performed more than 4,000 ETS procedures, with patient satisfaction rates exceeding 98% for palmar hyperhidrosis.
  • Convenient locations: Manhattan (Columbia University Medical Center), Englewood, NJ, and Pomona, NY.
  • Comprehensive treatment recommendations: Patients are evaluated for all available options and guided toward the treatment that best fits their needs and goals.

Frequently Asked Questions: Axillary Hyperhidrosis Treatment

Axillary hyperhidrosis is a recognized medical condition, not simply a cosmetic concern. It is caused by overactivity in the sympathetic nervous system and has measurable impacts on quality of life. It is also diagnosable and treatable through established medical interventions. Insurance coverage for treatment varies, but the condition itself has a legitimate medical ICD-10 code (L74.5) and is taken seriously by our clinical team.

The key distinguishing feature of hyperhidrosis is that sweating occurs independent of heat, exercise, or anxiety — it is persistent, unpredictable, and often affects daily activities and clothing choices. If your sweating is affecting your quality of life in ways that go beyond what normal sweating would, it is worth a clinical evaluation. Formal diagnosis uses tools like the Hyperhidrosis Disease Severity Scale (HDSS).

This is an important question and one of the key reasons miraDry® is preferred over surgical options for axillary hyperhidrosis. miraDry® eliminates sweat glands locally and has not been shown to cause compensatory sweating. Botox® injections also do not cause compensatory sweating. The ETS surgical approach, which is primarily used for hand sweating, carries a higher risk of compensatory sweating when targeted at the axillary nerve level — which is why we do not typically recommend ETS as a first-line treatment for underarm sweating.

Most patients achieve significant improvement with a single miraDry® session. Clinical studies have shown an average reduction in sweat production of approximately 82% after one treatment. A second session can further optimize results, and some patients choose this option. Our team will assess your response after the first treatment and advise accordingly.

Botox® injections for axillary hyperhidrosis typically last between 6 and 12 months, with many patients experiencing results toward the higher end of that range. The procedure involves a series of small injections across the underarm area; a topical numbing cream is applied beforehand and most patients describe the discomfort as very mild. There is no meaningful downtime.

Coverage depends on your insurance provider and specific plan. Prescription antiperspirants and Botox® for hyperhidrosis are covered by many insurance plans when conservative treatments have been documented and tried. miraDry® coverage is less consistent but possible in some cases. Our team can help you review your benefits and prepare documentation before treatment.

miraDry® offers a permanent solution for axillary hyperhidrosis by eliminating the sweat glands in the underarm area. Because sweat glands do not regenerate, the reduction in sweating is lasting. This makes miraDry® the closest thing to a permanent cure currently available for underarm sweating — without surgery and without risk of compensatory sweating.

 

Ready to Stop Managing and Start Living?

Schedule a consultation at the Center for Hyperhidrosis at Columbia University Medical Center. Our team offers every available treatment for axillary hyperhidrosis and will help you find the right fit.

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