Botox For Sweating

Hyperhidrosis — the medical term for excessive sweating beyond what the body needs to regulate temperature — can affect the underarms, hands, feet, face, and scalp, often interfering with daily activities, professional confidence, and quality of life. FDA-approved for the treatment of severe primary axillary hyperhidrosis since 2004, Botox (onabotulinumtoxinA) offers a non-surgical, in-office solution that temporarily blocks the chemical signal that tells sweat glands to activate. Clinical studies have shown reductions in underarm sweating of 82 to 87 percent, with palmar (hand) sweating responding similarly well — making Botox one of the most effective and best-studied treatments for this often-misunderstood condition.

Dr. Maurice Khosh is uniquely positioned to deliver this care. He is dual board-certified by the American Board of Facial Plastic and Reconstructive Surgery and the American Board of Otolaryngology–Head and Neck Surgery — a dual specialty that places the head, face, and scalp (the regions most commonly affected by hyperhidrosis) squarely within his everyday clinical practice. He earned his medical degree from Albert Einstein College of Medicine, where he was inducted into the Alpha Omega Alpha (AOA) Medical Honor Society, and completed residency at Columbia University followed by a fellowship at the University of Washington. A Fellow of the American College of Surgeons (FACS), Clinical Assistant Professor at Columbia University, and perennial Castle Connolly Top Doctor, Dr. Khosh has been recognized by New York Magazine’s Best Doctors list and the Best Doctors in America registry. With three decades of head and neck surgical experience, he brings anatomical precision and clinical judgment to a treatment that depends on both.

How Botox Treats Excessive Sweating

Sweat glands are activated by a chemical messenger called acetylcholine, released from small nerve endings just beneath the skin. Botox blocks the release of acetylcholine at these nerve terminals, effectively “switching off” the targeted sweat glands for several months at a time. Because the injections are placed superficially — into the dermal layer where the sweat glands sit rather than into the deeper muscle — the treatment does not affect strength, mobility, or normal body function. Patients typically notice meaningful reduction in sweating within 4 to 7 days, with full effect by two weeks. Dryness lasts an average of 4 to 12 months depending on the area treated, with some patients in research settings experiencing benefit for up to 14 months.

“Hyperhidrosis treatment with Botox is a different kind of precision than cosmetic injection — the goal is to deactivate the sweat glands sitting just under the skin, without affecting deeper muscles. The injection plane and grid spacing matter just as much as the dose.” — Dr. Maurice Khosh

Areas Dr. Khosh Treats with Botox for Hyperhidrosis

• Underarms (Axillary Hyperhidrosis): The original FDA-approved indication and the most well-studied application
• Hands (Palmar Hyperhidrosis): Used off-label with success rates of 80 to 90 percent in published research
• Feet (Plantar Hyperhidrosis): Effective for patients with excessive foot sweating that resists topical treatments
• Face and Scalp (Craniofacial Hyperhidrosis): A common but often-undiagnosed pattern affecting the forehead, scalp, and “T-zone”
• Other Localized Areas: Smaller body regions where focal sweating affects daily comfort or social function

What to Expect During Treatment

Treatment at Dr. Khosh’s Park Avenue office typically takes 15 to 30 minutes depending on the area. After cleansing the skin and mapping the treatment grid, Dr. Khosh delivers a series of small, shallow injections using a fine-gauge needle. Topical numbing cream is available, particularly for sensitive areas such as the palms or soles. Patients can drive themselves home, return to work immediately, and resume normal activity the same day. For best results, repeat treatments are typically recommended every 4 to 6 months, with some patients spacing them longer as the response pattern stabilizes.

Frequently Asked Questions About Botox for Excessive Sweating

How soon will I notice less sweating?

Most patients begin to experience meaningful dryness within 4 to 7 days, with the full effect developing over two weeks. Underarm and scalp treatments tend to show results slightly faster than palm or foot treatments.

How long do the results last?

On average, dryness lasts 4 to 12 months depending on the area treated, the dose used, and individual response. Underarm treatments often last 6 to 12 months, while palm and foot treatments tend to require somewhat more frequent maintenance.

Is the treatment painful?

The injections are very shallow and brief. Most patients tolerate underarm and scalp treatments comfortably without anesthesia. For palmar and plantar treatments, Dr. Khosh uses topical numbing cream or other comfort measures to minimize discomfort during the procedure.

Will my insurance cover Botox for sweating?

Many insurance plans cover Botox for axillary (underarm) hyperhidrosis when patients have failed prescription-strength antiperspirants. Coverage for other body areas is variable. The office can review your plan and help with documentation during your consultation.

Are there any side effects?

Most patients experience only minor bruising or temporary soreness at the injection sites. Because the injections are placed in the skin rather than muscle, weakness is uncommon. Palmar treatments may cause mild, temporary hand weakness in some patients, which resolves within a few weeks.

Is Botox for sweating safe with other Botox treatments?

Yes. Botox doses used for hyperhidrosis are within the same safe range used for cosmetic and other therapeutic applications, and many patients receive treatment in multiple areas at the same visit. Dr. Khosh coordinates dosing across all treated areas to ensure overall safety.

Why Patients Choose Dr. Khosh for Hyperhidrosis Treatment

• Head and Neck Surgical Expertise: Three decades treating the regions most commonly affected by hyperhidrosis
• Precise Injection Technique: Calibrated grid spacing and shallow placement to deactivate sweat glands without affecting muscle function
• Multi-Area Treatment Capability: Underarms, palms, soles, face, and scalp evaluated and treated in a single visit when appropriate
• Insurance Support: Assistance with documentation and prior authorization for qualifying patients
• Park Avenue Convenience: Private Upper East Side practice serving patients from Manhattan and the surrounding region

Schedule Your Consultation in Manhattan

If excessive sweating is interfering with your work, social life, or confidence, Botox may offer meaningful relief lasting months at a time. Dr. Khosh evaluates each patient individually to determine which areas to treat, the appropriate dose, and how the treatment fits into a broader plan for managing hyperhidrosis. To schedule a consultation at Dr. Khosh’s Park Avenue office in New York City, call (212) 339-9988 or contact us online.