Hyperhidrosis Treatment · ETS Surgery · London
The handshakes you’ve dreaded. The shirts you’ve ruined. The job you nearly didn’t go for.
If you have primary hyperhidrosis, you know exactly what this means — the damp palms before a meeting, the dark patches that appear regardless of temperature, the planning your entire wardrobe around concealment. You’ve probably tried every antiperspirant on the market. You may have had Botox injections that wore off. When conservative treatments have genuinely failed, endoscopic thoracic sympathectomy (ETS) offers a permanent, day-case surgical solution. Most patients describe the change as life-altering.
Hyperhidrosis — the types ETS can treat
Palmar (hands)
Sweaty palms — often the most socially disabling. Handshakes, touch screens, paper. ETS is highly effective for palmar hyperhidrosis.
Axillary (armpits)
Excessive armpit sweating regardless of temperature or activity. Clothing damage, embarrassment. ETS can address this alongside palmar treatment.
Facial / craniofacial
Facial sweating or blushing triggered by social situations or mild exertion. Closely related to facial blushing — treated by the same procedure.
Plantar (feet)
Sweaty feet — not typically treated by ETS (a lumbar approach would be needed). Managed conservatively or by dermatological approaches.
Secondary hyperhidrosis
Sweating caused by an underlying condition (thyroid, menopause, medication). ETS is not appropriate — the underlying cause must be addressed first.
Gustatory sweating
Sweating triggered by eating (Frey’s syndrome). Different mechanism — not typically addressed by standard ETS. Discuss at consultation.
From first treatment to surgery — in order
Surgery is appropriate when conservative treatments have genuinely failed. The pathway below reflects the evidence-based sequence — most patients have tried steps 1–4 before considering surgery.
Prescription-strength antiperspirants (aluminium chloride 20%)
First line. Applied at night to dry skin. Highly effective for mild to moderate axillary hyperhidrosis. Less effective for hands. Available on prescription or OTC. Side effect: skin irritation.
Iontophoresis
Passing a mild electrical current through the skin via water bath. Effective for palmar and plantar hyperhidrosis. Requires regular sessions (initially 3× per week then maintenance). Available on NHS for some.
Botulinum toxin (Botox) injections
Highly effective for axillary hyperhidrosis; moderate for palmar. Lasts 6–12 months. Repeated injections required. NHS-funded for axillary in many areas. Painful when used on palms.
Oral anticholinergic medications
Glycopyrrolate, oxybutynin — reduce sweating systemically. Side effects (dry mouth, blurred vision, constipation) limit tolerability at effective doses.
ETS — endoscopic thoracic sympathectomy
When conservative treatments have failed or are no longer acceptable. Minimally invasive keyhole surgery — typically day case. Permanent results. Full discussion of compensatory sweating risk at consultation.
Important: compensatory sweating
The principal side effect of ETS is compensatory sweating — increased sweating in other areas (trunk, thighs, back) as the body compensates for the blocked pathway. It occurs to some degree in the majority of patients and is severe in a minority. This is the most important factor in the decision to proceed with ETS and is discussed in full at consultation. For most patients with significant hand or facial sweating, the trade-off is acceptable. For others, it may not be. This conversation must happen before the operation.
What the operation involves
ETS is performed as a day case procedure under general anaesthetic. Most patients go home the same day or the following morning.
- Two small incisions of about 1 cm under each arm
- Thoracoscope inserted — lung gently deflated to allow access
- Sympathetic chain visualised alongside the spine
- Specific ganglion level divided or clamped depending on type
- Lung re-inflates · small drains placed and usually removed same day
- Both sides done at the same operation
- Day case or 1-night stay
- Hands typically dry within hours of waking from anaesthetic
- Return to desk work within 3–5 days
- Light activity within 1 week
- Very small scars under each arm — generally well hidden
- Results are permanent in the vast majority of cases
In the vast majority of cases, the reduction in targeted sweating is permanent. Very rarely, nerve regeneration over years can result in partial return — this affects a small minority of patients. The main concern is compensatory sweating (see above), which is present to some degree in most patients but severe in a minority.
Coverage for ETS varies by insurer and policy. Some insurers cover ETS as a medically necessary procedure when conservative treatment has failed and functional impairment is documented. Others treat it as elective. Namita will verify your specific policy before your consultation. If not covered by insurance, the procedure is available on a self-pay basis — the total cost is significantly lower than many thoracic procedures given the day-case nature of the operation.
Technically, a clipping approach (where the nerve is clipped rather than divided) can sometimes be reversed — but reversal is not always successful and should not be expected. Division of the nerve is not reversible. This is why the pre-operative consultation is so important: compensatory sweating must be properly understood and accepted before proceeding. For patients with very severe hand sweating, the vast majority would not choose reversal even if bothered by compensatory sweating. For patients with moderate sweating, the trade-off requires more careful consideration.
Conservative treatments not working?
A consultation gives you a clear picture of whether ETS is appropriate for your type and severity, and what the realistic outcomes and risks are.
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