Erythrasma Treatment in Nepal The Bacterial Fold Infection — Coral-Red on Wood's Lamp + the Correct Antibacterial
Specialist management of erythrasma — the Corynebacterium fold infection that mimics tinea and candida. Wood's lamp diagnosis and the correct antibacterial at Thamel Clinic.
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Reviewed by: STD Specialist (MBBS, MD - Medicine)
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Last medical review: June 1, 2026
This content follows evidence-based medical guidelines and is regularly updated to reflect current medical practices.
Erythrasma in Nepal
- Misdiagnosed as tinea — treated with antifungals for months when it's actually bacterial.
- Wood's lamp the instant test — the coral-red fluorescence is diagnostic in seconds.
- Hot humid climate — predisposes; recurrent infection is common.
- Diabetes association — recurrent/persistent erythrasma prompts a blood glucose check.
Erythrasma — the Bacterial Fold Infection
Erythrasma is a **bacterial infection of the skin folds** — caused by *Corynebacterium minutissimum* — affecting the groin, axillae, intergluteal and inframammary folds, and the toe webs. It produces well-defined, pink-to-brown, finely-scaly patches.
It is **very commonly confused with tinea cruris** (the leading look-alike) and with candida — but it's bacterial, not fungal, so the antifungals don't work. The diagnosis is quick and definitive: **coral-red fluorescence under a Wood's lamp** — the bacterial porphyrins fluoresce.
Treatment is an antibacterial, not an antifungal — usually macrolide or topical antibiotic. This page covers recognition and correct management.
Recognizing Erythrasma
Pink-brown patches
Well-defined, pinkish to brown, finely-scaly patches in the skin folds — groin, axillae, toe webs.
Mild/no itch
Often asymptomatic or mildly itchy — less intense itch than tinea.
Fold distribution
Crural fold, axillae, intergluteal, sub-mammary, toe webs — the moist intertriginous zones.
Not raised-edge
Unlike tinea — no raised, advancing, annular border; more uniform.
The Wood's Lamp Diagnosis
**Wood's lamp examination gives an instant, elegant answer** — erythrasma fluoresces a distinctive coral-red (from corynebacterial porphyrins) under UV. A few seconds of examination distinguishes it from tinea and candida definitively.
This is the test that ends months of failed antifungal treatment — the diagnosis is that quick.
Treatment — Antibacterial, Not Antifungal
Topical/oral antibacterial
Topical fusidic acid, clindamycin, or erythromycin; oral erythromycin/clarithromycin for extensive cases — because it's bacterial, not fungal.
Antiseptic/keratolytic
Benzoyl peroxide wash or keratolytics help control the colonization and reduce recurrence.
Moisture control
Drying, loose clothing, antibacterial soaps — reduces the moist environment the organism needs.
Underlying factors
Diabetes screening for recurrent cases; obesity and hyperhidrosis managed.
The Differential
Erythrasma vs tinea cruris is the key distinction — tinea has a raised scaly advancing edge and spares the scrotum; erythrasma is more uniform and involves the folds including scrotum sometimes. Wood's lamp: erythrasma = coral-red; tinea = no fluorescence.
Correct diagnosis = the right drug class. Treating erythrasma with an antifungal fails; treating it with an antibacterial works.
Erythrasma Care & Costs
| Service | What It Includes | Cost (NPR) |
|---|---|---|
| Specialist consultation | Wood's lamp diagnosis | Rs. 450 |
| Antibacterial treatment | Correct drug class | Per case |
| Diabetes screen (if recurrent) | Associated factor | Lab rate |
| Prevention plan | Recurrence reduction | Coordinated |
Transparent pricing; confirm current rates on booking.
Why Thamel Clinic for Erythrasma
- Wood's lamp diagnosis — the instant, definitive test.
- Correct drug class — antibacterial, not the antifungal that was failing.
- Underlying factors addressed — diabetes, moisture, obesity.
- Recurrence prevented — the maintenance + trigger management.
- Confidential — private, unhurried.
Frequently Asked Questions
Is erythrasma fungal?
No — it's a bacterial infection (Corynebacterium) that mimics tinea. That's why antifungals fail and antibacterials work.
How is it diagnosed?
Wood's lamp — coral-red fluorescence under UV, instant and definitive. A few seconds distinguishes it from tinea and candida.
Why did my antifungal not work?
Because erythrasma is bacterial, not fungal — the antifungal can't help. The correct antibacterial resolves it.
Does it mean I have diabetes?
Sometimes — recurrent/persistent erythrasma is associated with diabetes; we check the blood glucose for recurrent cases.
Still have questions? Contact us or book an appointment for personalized guidance.
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Last Updated: October 19, 2026 |Clinic: Thamel Clinic |Licensed: Registered