Erythrasma

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.

Medically Reviewed Content

Reviewed by: STD Specialist (MBBS, MD - Medicine)

NMC Registration:

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

ServiceWhat It IncludesCost (NPR)
Specialist consultationWood's lamp diagnosisRs. 450
Antibacterial treatmentCorrect drug classPer case
Diabetes screen (if recurrent)Associated factorLab rate
Prevention planRecurrence reductionCoordinated

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

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