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Erythrasma

A superficial bacterial infection caused by Corynebacterium minutissimum, presenting with brown-red plaques in skin folds.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Dermatoloji department. Book Appointment →

What is Erythrasma?

Erythrasma is a superficial skin infection confined to the stratum corneum layer, caused by the Gram-positive bacterium Corynebacterium minutissimum. It most commonly occurs in skin fold regions (armpits, groin, inframammary area, interdigital spaces).

Lesions appear as well-demarcated, brown-red, finely scaled plaques. They are mostly painless and mildly itchy; they are frequently confused with fungal infections.

The gold standard for diagnosis is coral-red fluorescence under Wood's light. This feature is due to the presence of porphyrin-like compounds and is very helpful in distinguishing it from superficial fungal infections.

Symptoms

Brown-red plaques in the groin, armpits, and under the breasts
Finely scaled, mildly itchy, well-demarcated lesions
Whitish softening and cracking between the toes
Generally painless, slowly progressing lesions
Coral-red fluorescence under Wood's light
Complaints that worsen with sweating
Widespread involvement in diabetic patients

Risk Factors

Obesity and excessive sweating
Diabetes mellitus
Hot and humid climate
Poor hygiene and tight synthetic clothing
Immune system suppression
Advanced age
Friction in skin fold regions

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Brown plaques unresponsive to antifungal cream
  • Recurring rashes in fold regions
  • Widespread skin lesions in the presence of diabetes
  • When Wood's light diagnostic confirmation is needed
  • With pain, fever, or signs of secondary infection

Treatment Methods

01
Topical erythromycin or clindamycin solution
02
Topical fusidic acid and mupirocin
03
Oral erythromycin or clarithromycin in widespread cases
04
Keeping the area dry and aired
05
Breathable cotton clothing and weight management
06
Diabetes control and preventing recurrence

Which Department to Visit?

You can visit our Dermatoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Let us help you

You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.