Excessive Sweating — Free SCA Practice Case
Waiter with excessive sweating
Station Timer
Golden Minute
Initial Introduction
•Introduce yourself
•Ask an open question — "How can I help you today?"
•Listen — don't interrupt
•Catch early cues
Data Gathering
History, ICE & Diagnosis
Clinical Management
Diagnosis, Plan & Decisions
Safety Net
Follow-up & Close
Five cases are free: a live 12-minute consultation with an AI patient each, marked, and no card.
Materials for Candidate
Please review before starting the consultation
Full Name
James Miller
Age
24 years
Consultation Type
TelephoneAge
24
Situation
Telephone Consultation.
Reason for Encounter
"Excessive sweating is ruining my life and my job. I need a solution."
Medical Records
- ●PMH: Anxiety (diagnosed aged 19, currently managed without medication).
- ●Medications: None.
- ●Allergies: NKDA.
- ●Social: Works as a waiter in a high-end restaurant. Non-smoker.
Recent Notes
- ●2 Years Ago: Mentioned "sweaty hands" during a routine check. Advised to use strong antiperspirant.
Patient Script
For the friend playing the patient role
Character Overview: You are James. You are smartly dressed but visibly uncomfortable (perhaps keeping your arms close to your sides or wiping your hands on your trousers). You feel humiliated by your condition. You work in a Michelin-star restaurant where presentation is everything, and you are terrified of losing your job.
Opening Sentence: "Hi Doctor. I'm at my wits' end. I'm sweating buckets, specifically from my hands and armpits. Last week, I dropped a tray of champagne flutes because my palms were so slippery. My manager gave me a written warning. I can't carry on like this."
History if Asked (Data Gathering Phase)
- ●The Symptoms: "It's mainly my palms and my underarms. My hands literally drip. I have to change my shirt twice during a shift because of the sweat patches."
- ●Timing: "It happens all day, even when I'm not hot. It stops when I'm asleep though—my sheets are dry in the morning." (Key feature of Primary Hyperhidrosis).
- ●Triggers: "Stress makes it worse, obviously. But even when I'm relaxed at home, my hands are clammy."
- ●Red Flags (Secondary Causes):
- ●Night Sweats: "No, never."
- ●Weight Loss: "No, my weight is stable."
- ●Palpitations/Tremor: "No." (Rule out Hyperthyroidism/Anxiety/Lymphoma).
- ●Previous Treatments: "I tried 'Driclor' (Aluminium Chloride) from the chemist a year ago. I put it on before work, but it stung like acid and gave me a red rash, so I threw it away."
ICE — Ideas, Concerns, Expectations
(The patient does not volunteer this information unprompted. These responses surface only if the candidate directly explores the patient's perspective.)
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Ideas: "I don't really know what causes it. I've always been a bit of a sweaty person, but it's got so much worse in the last couple of years. I did wonder if it was my anxiety, but honestly it happens even when I'm completely calm — sitting on the sofa at home, my hands are still wet. I think there must be something wrong with my sweat glands or something."
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Concerns: "I'm terrified I'm going to lose my job. I've already had a written warning. The restaurant is Michelin-starred — everything has to be immaculate. If I drop something again or a customer sees sweat dripping off my hands, that's it. And it's not just work — I avoid shaking hands with people, I can't hold my girlfriend's hand without her pulling away. It makes me feel disgusting."
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Expectations: "I just need something that actually works. The stuff from the chemist was useless. I want a proper treatment — something that stops the sweating so I can do my job and live my life without being embarrassed all the time."
If Asked — Medical History and Medications
(Actor guidance for items from the medical records that are relevant to the presenting complaint.)
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Anxiety (diagnosed aged 19): "Yeah, I was diagnosed with anxiety when I was at uni — I was having panic attacks during exams. I saw a counsellor for a bit and it helped. I'm not on any medication for it. To be honest, the anxiety is much better now — the only thing that really makes me anxious these days is the sweating itself."
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Previous GP consultation about sweaty hands (2 years ago): "I mentioned it to a doctor a couple of years ago, but they didn't seem that bothered. They just said to try a strong antiperspirant. I did try one from Boots but it didn't do much. Then about a year ago I bought Driclor myself, and that was the one that burned my skin."
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No current medications: "No, I'm not on anything at all. No tablets, no inhalers, nothing."
Social History and Lifestyle Impact
(Actor guidance — volunteered naturally in conversation when the candidate explores daily life and impact.)
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Occupation and daily life: James works full-time as a waiter at a Michelin-starred restaurant. His role is front-of-house: carrying trays, pouring wine, handling glassware, and interacting closely with high-paying customers. Presentation and composure are non-negotiable in this environment.
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Lifestyle impact of the condition:
- ●Within work: "It's destroying my confidence. At work, I wrap napkins around my hands to try and grip things, but my manager noticed and told me it looks unprofessional. I can't pour wine properly because the bottle slips. I've started dreading every shift."
- ●Outside of work: "Outside work it's just as bad. I won't go out with mates if I know there'll be handshakes — meeting new people is a nightmare. My girlfriend says she doesn't mind but I can tell she does. I stopped going to the gym because gripping the weights is impossible and it's mortifying when you leave a puddle on every bit of equipment you touch."
If Asked — Associated Symptoms
(Actor guidance — the patient responds only when directly asked about these symptoms.)
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If asked about sweating on the feet or soles: "Actually yeah, my feet get pretty sweaty too. I go through socks like nobody's business, and my shoes are always damp inside. I didn't mention it because the hands and armpits are the main problem."
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If asked about sweating on the face or scalp: "No, not really. My face is fine — it's just hands, armpits, and I suppose feet as well."
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If asked about fever or feeling generally unwell: "No, I feel fine in myself. I'm not ill or anything — just sweating."
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If asked about changes in bowel habit: "No, everything's normal there."
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If asked about heat intolerance: "I mean, being hot makes it worse, but it happens in the cold too. I was sweating through my shirt in December."
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If asked about any lumps or swellings: "No, nothing like that."
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If asked about excessive thirst or urinary frequency: "No, nothing like that."
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If asked about fatigue: "I'm tired, but I think that's just because I'm stressed about work and not sleeping brilliantly. I wouldn't say I'm abnormally tired."
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If asked about any rash or skin changes (other than from Driclor): "No, my skin is fine apart from when I used that Driclor stuff. That gave me a horrible red rash under my arms."
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If asked about family history of sweating: "Now you mention it, my dad is quite a sweaty person too. He's always mopping his forehead. I don't know if he's ever seen a doctor about it though."
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If asked about drug use or recreational substances: "No, I don't do drugs. I have the odd drink after a shift but nothing excessive."
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If asked about caffeine intake: "I do drink quite a lot of coffee — maybe four or five cups a day. I need it to get through the early prep shifts. But the sweating was happening before I started drinking this much coffee."
Responses to Management (The Negotiation Phase)
- ●If the Doctor prescribes Aluminium Chloride again:
- ●Reaction: Resistant. "I told you, I tried that stuff! It burned my skin off. Is there nothing else?" (The doctor needs to explain how to apply it correctly to avoid irritation).
- ●If the Doctor suggests Tablets (Propantheline/Oxybutynin):
- ●Reaction: Cautious. "Will they dry out my mouth? I have to talk to customers all night. I can't be slurring my words."
- ●If the Doctor mentions Botox:
- ●Reaction: Hopeful. "I've read about Botox injections. My friend had them. Can I get that on the NHS? I can't afford £400 every few months."
- ●If the Doctor attributes it to Anxiety:
- ●Reaction: Defensive. "I'm anxious because I'm sweating, Doctor. The sweat comes first."
Mark Scheme
Domain 1: Data Gathering and Diagnosis
Domain 2: Clinical Management and Medical Complexity
Domain 3: Relating to Others
Clinical Learning Points
Diagnosing Primary Focal Hyperhidrosis
- ●Primary focal hyperhidrosis is diagnosed clinically when excessive sweating has been present for more than 6 months without an identifiable cause, and at least two of the following are met: bilateral and relatively symmetrical distribution; impairs daily activities; frequency of at least one episode per week; age of onset under 25; positive family history; cessation during sleep.
- ●Cessation of sweating during sleep is the most important single differentiating feature — it is characteristic of primary hyperhidrosis and helps exclude secondary causes such as lymphoma, tuberculosis, and hyperthyroidism, all of which typically cause nocturnal sweating.
- ●The most common sites for primary focal hyperhidrosis are the palms, axillae, soles, and face/scalp. Palmoplantar and axillary involvement together (as in this case) is a classic presentation.
- ●A positive family history is present in up to two-thirds of cases, supporting a genetic predisposition involving autonomic dysregulation of eccrine sweat glands.
Ruling Out Secondary Hyperhidrosis
- ●Secondary hyperhidrosis is generalised (rather than focal), often nocturnal, and has an identifiable underlying cause. Key causes to exclude include: hyperthyroidism, lymphoma, phaeochromocytoma, diabetes mellitus, tuberculosis, and — in older patients — malignancy or menopause.
- ●Systematically screen for: night sweats, unexplained weight loss, palpitations, tremor, heat intolerance, lymphadenopathy, polyuria/polydipsia, and change in bowel habit.
- ●Do not conflate the patient's anxiety history with the cause of sweating. In primary hyperhidrosis, anxiety typically arises secondary to the sweating — not the other way around. The sweating occurs at rest, at home, and in the absence of anxious episodes; this directional history is diagnostically important.
Investigations
- ●Primary hyperhidrosis is a clinical diagnosis — routine investigations are not required when the history is typical and secondary causes have been excluded by history alone.
- ●Investigate if there is any clinical suspicion of a secondary cause. NICE CKS recommends TFTs if hyperthyroidism is a differential; a blood glucose if diabetes is suspected; and further targeted investigation (including blood film, LDH, CXR) if lymphoma is a concern.
- ●Do not over-investigate a straightforward presentation with a classic focal, diurnal pattern and no systemic features — this risks unnecessary anxiety and delays treatment.
First-Line Treatment: Aluminium Chloride Hexahydrate
- ●Aluminium chloride hexahydrate 20% (e.g. Driclor, Anhydrol Forte) is first-line for all sites of primary focal hyperhidrosis per NICE CKS.
- ●Correct application is essential and is the most commonly mismanaged aspect of treatment:
- ●Apply to completely dry skin — ideally 30 minutes after drying thoroughly, or use a hairdryer on a cool setting to ensure no moisture remains.
- ●Apply at night, when eccrine sweat gland activity is at its lowest.
- ●Wash off in the morning before sweating begins.
- ●Use every night until sweating is controlled, then reduce to 1–2 times per week as maintenance.
- ●Aluminium ions combine with water and sweat to form a gel that physically occludes the sweat duct. When applied to damp skin, the reaction produces hydrochloric acid — this is the mechanism behind the stinging and irritant dermatitis that causes patients to abandon the treatment.
- ●If irritation occurs: apply hydrocortisone 1% cream the following morning to the affected area. Avoid applying to broken or freshly shaved skin. Reducing to alternate-night application can also improve tolerability.
Second-Line Treatment: Oral Anticholinergics
- ●Oral anticholinergics reduce sweating by blocking muscarinic receptors on eccrine sweat glands. They are a systemic option when topical treatment has failed or is not tolerated.
- ●Propantheline bromide is licensed for hyperhidrosis in the UK. Typical starting dose: 15 mg three times daily, taken 30 minutes before meals. Can be titrated upward under specialist guidance.
- ●Oxybutynin is commonly used off-label and is effective; evidence supports it for hyperhidrosis though its licence is for overactive bladder.
- ●Glycopyrronium bromide (oral or topical) is an alternative anticholinergic with reduced CNS penetration compared to oxybutynin, meaning fewer cognitive side effects — useful if oxybutynin is not tolerated.
- ●Side effects of all anticholinergics follow the classic pattern: dry mouth, blurred vision, urinary retention, constipation, and tachycardia. Dry mouth is particularly relevant to patients in patient-facing, speech-intensive roles. Discuss these trade-offs explicitly in shared decision-making.
- ●Anticholinergics are not appropriate as primary treatment for anxiety — do not conflate the two diagnoses. SSRIs or beta-blockers should not be prescribed for hyperhidrosis on the basis of an anxiety history.
Specialist Treatments (Dermatology Pathway)
- ●If first- and second-line GP treatments are inadequate, refer to dermatology for consideration of the following:
- ●Iontophoresis: A weak direct electrical current is passed through water to the submerged hands or feet. It is effective for palmoplantar hyperhidrosis, requires multiple sessions (typically 6–10 initially, then maintenance), and is available via dermatology. Home devices can also be purchased.
- ●Botulinum toxin A injections: Block acetylcholine release at the neuromuscular junction of eccrine glands. Highly effective for axillary hyperhidrosis; also used for palmar (though palmar injections are more painful). Effects last 4–9 months and require repeat treatment. NHS availability varies — many areas require an Individual Funding Request (IFR) or the patient must meet specific commissioning criteria. Be honest with patients: it is not guaranteed on the NHS and usually requires prior documented failure of topical and systemic treatments.
- ●Endoscopic thoracic sympathectomy (ETS): Surgical interruption of the sympathetic chain. A last-resort option due to the significant risk of compensatory hyperhidrosis — severe sweating developing at a different body site (commonly the trunk or thighs) in up to 90% of patients. This can be more disabling than the original condition.
Lifestyle and Non-Pharmacological Measures
- ●Caffeine reduction: Caffeine is a recognised trigger for sweating. This patient drinks 4–5 cups of coffee daily — advise gradual reduction, as abrupt cessation causes headaches.
- ●Wear loose-fitting, natural fibre clothing (cotton, linen) which allows better airflow and wicks moisture more effectively than synthetic fabrics.
- ●Use soap substitutes or emollient washes rather than soap, which can worsen skin irritation alongside topical treatments.
- ●Practical measures for work: absorbent insoles for footwear, grip-enhancing products for the hands (e.g. rosin-based products used in sports), and moisture-wicking socks.
- ●Reassure the patient that while caffeine reduction and lifestyle changes are unlikely to resolve the condition alone, they may meaningfully reduce severity and improve response to treatment.
Safety Netting
- ●Advise the patient to return if: night sweats develop, unexplained weight loss occurs, sweating becomes generalised (rather than focal), or there is any new systemic symptom — as these would indicate the need to revisit for secondary causes.
- ●Also return if topical or oral treatment has been tried correctly and is ineffective after an adequate trial — this triggers the referral pathway.
- ●Arrange follow-up at 4–6 weeks to review treatment response, assess side effect tolerability, and plan escalation if needed. Do not leave the patient without a structured review plan.
Common Candidate Mistakes in This Station
- ●Attributing hyperhidrosis to anxiety without exploring the temporal and directional relationship. The sweating in primary hyperhidrosis precedes and causes the anxiety — not the reverse. Candidates who treat the anxiety as the primary diagnosis and reach for SSRIs or beta-blockers will score in the negative indicators.
- ●Re-prescribing aluminium chloride without addressing the application error. The patient tried it and stopped because it burned. Simply prescribing it again without explaining why it burned and how to apply it correctly is a fail-level response — it will happen again.
- ●Overpromising on Botox availability. Candidates who tell the patient he can access botulinum toxin injections immediately on the NHS without acknowledging the stepped pathway, IFR requirements, or prior treatment criteria will score negatively. Be honest and frame the pathway positively.
- ●Omitting iontophoresis. This is a key non-pharmacological specialist option that candidates frequently overlook, particularly for palmoplantar hyperhidrosis where it has strong evidence.
- ●Failing to address the occupational context. This patient has had a written warning and is at risk of losing his job. Acknowledging this urgency, considering a supportive letter or fit note while treatment is established, and framing the management plan around his timeline is a positive indicator that separates strong candidates.
Mapped to the RCGP curriculum topic: Dermatology.
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