PHN Topical Treatment — FRCA Final MCQ

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ModeratePain MedicinePHN Topical TreatmentFRCA Final

PHN refractory to amitriptyline and pregabalin. Recommended topical treatment?

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Correct answer: A — Lidocaine 5% plaster

PHN refractory to oral agents: lidocaine 5% plaster (12h on/12h off, intact skin) and capsaicin 8% patch (30-60 min in hospital, q90 days) are recommended topical options. Minimal systemic effects.

Reference: NICE – 2023 – CG173 Neuropathic pain