Hyperhidrosis Treatment in London

Excessive sweating treatment London at PRP London Clinic addresses hyperhidrosis as a genuine medical condition, not a cosmetic inconvenience. Primary hyperhidrosis affects an estimated 1–3% of the population, causing uncontrollable sweating that significantly impacts daily life, professional confidence, and emotional wellbeing. As a specialist treatment within our anti-wrinkle treatment programme, botulinum toxin injections provide a clinically proven solution for patients who have not responded adequately to topical antiperspirants or other conservative measures.

This page is dedicated to hyperhidrosis treatment London — a medically indicated procedure that temporarily blocks the chemical signals responsible for activating sweat glands. Whether your excessive sweating affects your underarms, palms, or other areas, our GMC-registered doctors provide a thorough consultation and personalised treatment plan at 33 Cavendish Square, London W1G. If you are searching for effective underarm botox London delivered by experienced medical professionals, PRP London Clinic offers evidence-based care in a discreet clinical setting.

Every hyperhidrosis treatment London consultation and procedure at PRP London Clinic is carried out by a GMC-registered doctor with specialist training in injectable techniques. Our team includes Dr Bruno Amendola (GMC: 4346629), who holds an international postgraduate qualification in aesthetic medicine and Save Face accreditation with extensive experience in both cosmetic and medical applications of botulinum toxin; Dr Mohamed Nafei (GMC: 7520509), whose postgraduate training in aesthetic medicine and endocrinology provides valuable insight into the hormonal factors that can contribute to excessive sweating; Dr Reem Nouri (GMC: 6149512), who combines general practice expertise with advanced aesthetic training for precise, comfortable treatment delivery; and Dr Mohammad Akbar (GMC: 5206673), our Founder and Medical Director and Fellow of the Royal College of Surgeons of Edinburgh, whose surgical background ensures the highest clinical standards across every hyperhidrosis London treatment we provide.

What Is Primary Hyperhidrosis?

Hyperhidrosis is a medical condition characterised by sweating that exceeds the body's normal thermoregulatory requirements. Primary hyperhidrosis — the most common form — occurs without an identifiable underlying cause and typically begins in adolescence or early adulthood. It is driven by overactivity of the eccrine sweat glands, which are concentrated in areas such as the underarms (axillae), palms, soles, and forehead. Unlike secondary hyperhidrosis, which may result from medications, hormonal conditions, or systemic illness, primary hyperhidrosis is localised, symmetrical, and present for at least six months.

Eccrine Gland Overactivity

The eccrine glands responsible for excessive sweating are innervated by the sympathetic nervous system through the neurotransmitter acetylcholine. In patients with hyperhidrosis, these glands respond excessively to normal stimuli — including stress, heat, and physical activity — producing sweat volumes far beyond what is needed for temperature regulation. Botulinum toxin works by temporarily blocking the release of acetylcholine at the nerve-gland junction, effectively reducing sweat output in the treated area for several months.

Impact on Quality of Life

Hyperhidrosis London patients frequently describe significant social, professional, and emotional consequences. Visible sweat patches, damp handshakes, and the need to change clothing multiple times daily can lead to social withdrawal, reduced confidence, and avoidance of professional or personal interactions. Research consistently shows that hyperhidrosis has a measurable impact on quality of life comparable to conditions such as psoriasis and chronic dermatitis — yet many patients wait years before seeking treatment, unaware that effective medical options exist.

Why Botulinum Toxin Works for Sweating

A meta-analysis of 12 randomised controlled trials involving 904 patients demonstrated that botulinum toxin injection significantly reduces sweat production compared with placebo in primary axillary hyperhidrosis, with fewer side effects compared to alternative treatments. The mechanism is distinct from its cosmetic use in wrinkle treatment: rather than relaxing muscles, the toxin blocks acetylcholine release at eccrine gland nerve endings, suppressing the signal that triggers sweat production. This targeted action means treatment reduces sweating only in the injected area without affecting the body's overall ability to regulate temperature.

Your underarm botox London appointment begins with a medical consultation. The treating doctor takes a full medical history, assesses the severity and distribution of your sweating, and confirms that primary hyperhidrosis is the likely diagnosis. In some cases, a starch-iodine test may be used to map the precise area of maximal sweat production, ensuring accurate injection placement.

Treatment involves a series of small, superficial injections spaced approximately 1–2 cm apart across the affected area. For axillary hyperhidrosis treatment, this typically involves 15–20 injection points per underarm using ultra-fine needles. The procedure targets the dermis — the skin layer where eccrine glands reside — rather than the deeper muscle tissue targeted in cosmetic treatments. Topical anaesthetic or ice may be applied beforehand to maximise comfort.

The entire armpit botox London procedure takes approximately 30–45 minutes, including consultation and treatment. There is no downtime, and you can return to normal activities immediately. Most patients notice a significant reduction in sweating within 2–7 days, with full effect achieved by two weeks. A review appointment at 2–4 weeks confirms the response and determines whether any touch-up injections are required.

If you have received hyperhidrosis treatment at another clinic and experienced an inadequate response, PRP London Clinic offers a retreatment consultation. The most common reason for suboptimal results is insufficient dosing or inaccurate placement — missing key areas of sweat gland concentration can leave patches of persistent sweating.

Your doctor will assess the treated area, potentially using a starch-iodine test to identify residual zones of activity, and determine whether supplementary injections can improve the outcome. In cases where the previous treatment was recent and appropriately dosed, your doctor will provide an honest assessment of whether further intervention is likely to help or whether waiting for the current treatment to wear off is more appropriate. A consultation fee applies regardless of whether retreatment is recommended.

Hyperhidrosis treatment cost at PRP London Clinic starts from £500. The final price depends on the extent of the treatment area and the number of units required, which is determined during your consultation.

Factors affecting the cost of your underarm botox London treatment include:

• Treatment area size — larger areas of sweat gland activity require more injection points and higher unit counts
• Severity of hyperhidrosis — more severe cases may require higher doses for adequate sweat suppression
• Number of areas treated — underarms only versus multiple areas (palms, forehead)
• First treatment vs maintenance — initial treatments may require a full assessment fee; maintenance visits may be streamlined

A detailed quote is provided during your consultation based on your individual treatment plan. All pricing is transparent with no hidden fees. Consultation fees are deducted from the treatment cost if you proceed on the same day.

The safety of botulinum toxin for hyperhidrosis treatment is well-supported by clinical evidence. A meta-analysis of 12 randomised controlled trials involving 904 patients with primary axillary hyperhidrosis confirmed that botulinum toxin injection significantly reduces sweat production compared with placebo, with fewer side effects compared to alternative treatment modalities. A broader meta-analysis of 9,669 patients confirmed an acceptable overall safety profile for botulinum toxin across multiple indications.

The most commonly reported side effects of armpit botox London include:

• Mild bruising or swelling at injection sites (resolves within days)
• Temporary localised discomfort during the injection process
• Localised redness or tenderness in the treated area
• Small areas of reduced sensation near injection points (temporary)
• Minor muscle weakness in adjacent muscles (rare and transient)

Compensatory sweating — increased sweating in untreated areas — is a recognised concern with surgical sympathectomy but is not a significant feature of localised botulinum toxin treatment. At PRP London Clinic, all hyperhidrosis botox London treatments are administered by GMC-registered doctors with precise injection technique targeting the dermal layer where eccrine glands reside. Every patient receives a thorough pre-treatment assessment and a review appointment at 2–4 weeks.

First 24 Hours

• Avoid applying deodorant, antiperspirant, or any topical product to the treated area for 24 hours
• Avoid touching, rubbing, or massaging the injection sites
• Avoid strenuous exercise, saunas, steam rooms, and hot baths
• Limit alcohol consumption
• Do not shave the treated area for 24 hours

First Two Weeks and Beyond

• Most patients notice a significant reduction in sweating within 2–7 days
• Full effect is typically achieved by two weeks post-treatment
• You may resume using deodorant after 24 hours
• Normal daily activities, including work, can be resumed immediately
• Contact the clinic if you notice any unusual symptoms, persistent discomfort, or no improvement after two weeks
• Attend your scheduled review appointment at 2–4 weeks to assess response and determine whether any touch-up is needed

Your doctor will provide written aftercare instructions tailored to your specific treatment at the time of your appointment.

Your suitability for hyperhidrosis botox London treatment is determined during your medical consultation. The following conditions are contraindications:

• Neuromuscular disorders — myasthenia gravis, Lambert-Eaton syndrome, amyotrophic lateral sclerosis
• Pregnancy or breastfeeding — treatment is not administered during pregnancy or lactation
• Allergy or hypersensitivity — known allergy to botulinum toxin or any formulation excipients
• Active skin infection — any infection, folliculitis, or significant irritation at the proposed treatment site must be fully resolved
• Bleeding disorders — including patients on anticoagulant therapy (discussed on a case-by-case basis)
• Certain medications — aminoglycoside antibiotics, muscle relaxants, or other medications that may interact with botulinum toxin
• Secondary hyperhidrosis — if your sweating is caused by an underlying medical condition (e.g. thyroid disorder, diabetes, menopause), this must be investigated and managed before cosmetic treatment is appropriate

If you are unsure whether any of these apply to you, your consulting doctor will review your full medical history and advise accordingly. All treatment decisions prioritise patient safety.

This page is intended for informational and educational purposes only. The content does not constitute medical advice, diagnosis, or a recommendation for any specific treatment. Certain treatments described involve prescription-only medicines that can only be prescribed by a qualified medical professional following a face-to-face assessment. Individual results vary, and outcomes cannot be guaranteed. All medical treatments carry risks, which will be discussed in full during your consultation. This content was last reviewed on 2 April 2026 by the medical team at PRP London Clinic.

PRP London Clinic is located at 33 Cavendish Square, London W1G 0PW, in the heart of Marylebone — one of London's most established medical districts. Our clinic is a short walk from Oxford Circus (Central, Victoria, and Bakerloo lines), Bond Street (Central and Jubilee lines), and Regent's Park (Bakerloo line). If you are searching for excessive sweating treatment London with GMC-registered doctors, convenient central access, and a consultation-led approach, PRP London Clinic provides specialist hyperhidrosis treatment London with thorough assessment, evidence-based treatment, and structured follow-up care.

Take the first step toward effective relief from excessive sweating. Book a consultation with one of our GMC-registered doctors at PRP London Clinic to receive a personalised assessment for underarm botox London and hyperhidrosis treatment. Whether your excessive sweating affects your underarms, palms, or other areas, our medical team provides expert evaluation and targeted treatment at 33 Cavendish Square.