COSMEDOCS
    Harley Street Doctors • Since 2007

    Medically reviewed by Dr Ahmed Haq, Medical Director, Cosmedocs Harley StreetGMC 6078057Last reviewed

    Botox for Hyperhidrosis London

    Natural · Longer Lasting Results

    Botox for hyperhidrosis is an FDA-approved botulinum toxin treatment for excessive sweating — blocking nerve signals to the sweat glands for life-changing relief, doctor-led in London.

    Doctor-Led20–30 MinFDA-ApprovedHarley Street

    What Is Hyperhidrosis?

    Hyperhidrosis is a medical condition causing excessive sweating beyond what the body needs to regulate temperature. It significantly impacts daily life, confidence, and social interactions — and conventional antiperspirants often provide insufficient relief.

    The condition affects approximately 1–3% of the population and can manifest as primary (idiopathic) or secondary hyperhidrosis. Primary hyperhidrosis typically begins in adolescence and affects specific areas — most commonly the underarms, palms, feet, and face.

    Botulinum toxin treatment for hyperhidrosis has been FDA-approved since 2004. It works by blocking the release of acetylcholine at the junction between nerve fibres and sweat glands, temporarily reducing sweat production in the treated area by up to 87%.

    At Cosmedocs, we are members of the International Hyperhidrosis Society and have been performing this therapeutic treatment since 2007.

    How the Treatment Works

    Multiple micro-injections of botulinum toxin are administered across the affected area using ultra-fine needles. The neurotoxin blocks nerve signals that trigger sweat gland stimulation, dramatically reducing perspiration within 1–2 weeks.

    During your consultation, your doctor will assess your condition using the Hyperhidrosis Disease Severity Scale (HDSS) — a clinical benchmark that evaluates how much excessive sweating interferes with daily activities.

    Injections are strategically placed in a grid pattern to ensure comprehensive coverage. Underarms typically require 15–20 injections per side, whilst hands may need 40–50 injections per palm. Topical anaesthetic is applied to minimise discomfort.

    A medical study suggests that higher doses of botulinum toxin to relax sweat glands produce longer-lasting results, allowing the treatment to address excessive sweating more effectively.

    The HDSS Scale

    The Hyperhidrosis Disease Severity Scale (HDSS) is a four-point clinical benchmark we use during consultation to grade how much excessive sweating interferes with daily life — and to personalise your dosage and review schedule.

    GradeHow your sweating affects youTypical review
    1Sweating is never noticeable and never interferes with activity.Monitor only
    2Sweating is tolerable but sometimes interferes with activity.1–2 × year
    3Sweating is barely tolerable and frequently interferes with activity.~3 × year
    4Sweating is intolerable and always interferes with activity.~3 × year

    In our clinical experience, roughly three in four patients we treat present at HDSS grade 3 or 4, and typically require treatment around three times per year to maintain comfort. Patients at grade 2 often achieve longer intervals between sessions.

    Treatment Areas

    Underarms

    £550

    Most common area. Both underarms treated with precise injection grid. Results typically last 6–12 months.

    Palms

    £550

    Palmar hyperhidrosis treatment for sweaty hands that affect professional and social interactions.

    Feet

    £650

    Plantar hyperhidrosis treatment targeting excessive foot sweating and related discomfort.

    Facial Areas

    From £200

    Forehead, upper lip, and scalp sweating treated with smaller, more precise doses.

    What Causes Excessive Sweating?

    Hyperhidrosis occurs when sweat glands work overtime beyond what is needed for temperature regulation. It can be genetic, stress-related, hormonal, or linked to underlying medical conditions.

    Genetics

    Family history plays a significant role in primary hyperhidrosis. The condition often runs in families and typically begins in adolescence.

    Emotional Stress

    Anxiety and emotional stress can trigger or worsen excessive sweating, creating a cycle that further impacts confidence.

    Hormonal Changes

    Pregnancy, menopause, and thyroid disorders can cause or exacerbate excessive sweating.

    Medical Conditions

    Certain medications, infections, and systemic conditions can trigger secondary hyperhidrosis.

    Am I Suitable?

    May Be Suitable

    • • Severe sweating impacting daily life
    • • Antiperspirants provide insufficient relief
    • • Sweating occurs regardless of temperature
    • • Social or professional confidence affected
    • • Over 18 years of age

    May Not Be Suitable

    • • Pregnancy or breastfeeding
    • • Neuromuscular disorders (e.g. myasthenia gravis)
    • • Allergy to botulinum toxin
    • • Active infection at the treatment site
    • • Untreated secondary hyperhidrosis causes

    What to Expect

    Sweat reduction begins within 1–2 weeks, with maximum dryness achieved by 4 weeks. Underarm results typically last 6–12 months; hands and feet 4–6 months.

    Clinical studies published by the International Hyperhidrosis Society demonstrate consistent efficacy rates of 82–87% sweat reduction. Many patients find that with repeated treatments, the duration of effectiveness may increase slightly.

    You may experience mild soreness at injection sites for 24–48 hours. Side effects are generally minimal and temporary. There is no downtime — you can return to normal activities immediately after treatment.

    Your doctor will discuss realistic expectations during consultation, including the HDSS assessment and personalised dosage planning based on the severity of your condition.

    Preparation & Aftercare

    Minimal preparation is required. For underarm treatment, shave 2–3 days before your appointment. Wear loose-fitting clothing for easy access to treatment areas.

    • Shave the treatment area 2–3 days before your appointment
    • Avoid antiperspirants on the treatment day
    • Wear breathable, loose-fitting clothing
    • Avoid strenuous exercise for 24 hours after treatment
    • No hot baths or saunas for 48 hours post-treatment
    • Use clinical-strength antiperspirants between treatments for ongoing management

    Why Cosmedocs?

    • Doctor-led — all treatments by GMC-registered doctors
    • International Hyperhidrosis Society members
    • Harley Street Institute trainers — established 2007
    • Over 1 million treatments performed
    • FDA-approved products exclusively
    • Our aesthetics is invisible art

    Frequently Asked Questions

    Botox blocks nerve signals to sweat glands, dramatically reducing sweat production. It's FDA-approved for severe underarm sweating (hyperhidrosis) and can also treat palms, feet, and other areas for life-changing results.

    Results typically last 6–12 months for underarms, and 4–6 months for hands and feet. Many patients experience dramatic reduction in sweating, significantly improving their quality of life and confidence.

    Treatment involves multiple small injections which can be uncomfortable, especially for hands and feet. We use topical anaesthetic and ice to minimise discomfort during the 20–30 minute procedure.

    You may experience mild soreness at injection sites for 24–48 hours. Sweat reduction begins within 1–2 weeks, with maximum dryness achieved by 4 weeks. Normal activities can be resumed immediately.

    Ideal candidates have severe sweating that significantly impacts daily life and hasn't responded to antiperspirants. A consultation will assess your condition and determine if this therapeutic treatment is suitable.

    Treatment at Cosmedocs ranges from £350 to £650 depending on the area treated. Underarms are £550, palms £550, feet £650, and forehead £350. This includes consultation and follow-up care.

    Yes. Hyperhidrosis botox can be combined with cosmetic botox treatments for comprehensive care. Our doctors create personalised treatment plans addressing both therapeutic and aesthetic concerns simultaneously.

    Related Guides

    Hyperhidrosis Treatment London

    Complete guide to doctor-led excessive sweating treatment at our Harley Street clinic, including pricing and what to expect.

    Underarm Sweating Treatment

    Specialist botox protocol for axillary hyperhidrosis — precise grid injections for lasting dryness and confidence.

    Underarm Botox Units: 25 · 50 · 100

    Dosage guide — how many units your underarms actually need for reliable, long-lasting dryness.

    Sweaty Palms Treatment

    Palmar hyperhidrosis botox with comfort protocol — targeted nerve block for professional and social confidence.

    Ready to Stop Excessive Sweating?

    A consultation with our doctors will assess your condition using the HDSS clinical scale and create a personalised treatment plan for lasting relief.

    At a Glance

    Duration

    20–30 minutes

    Results last

    6–12 months

    Recovery

    Immediate

    Product

    Botulinum toxin

    Approval

    FDA-approved

    Treatment Areas

    Underarms£550
    Palms£550
    Feet£650
    Forehead£350

    Scalp, nose, cheeks — on consultation

    M

    Michael T.

    "Life-changing treatment. I'd avoided social situations for years because of excessive underarm sweating. After one session, the problem was virtually gone."

    More real experiences

    Medical Credentials

    • International Hyperhidrosis Society member
    • GMC-registered doctors
    • FDA-approved products only
    • Harley Street Institute trainers
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