THE DERM DOSSIER

Are you sure that rash is ringworm?

In many African settings, almost every round or itchy rash is treated as fungal infection. But the truth is, not all of them are.

Several skin conditions can look very similar to Tinea corporis, especially in darker skin where redness is less obvious and patterns can be harder to distinguish.

Here are a few common lookalikes:

• Pityriasis rosea
Often starts with a single “herald patch” before spreading into smaller lesions. It may itch mildly or not at all.

• Granuloma annulare
A smooth, flesh-coloured ring with no scale. Usually not itchy.

• Nummular eczema
Very itchy, coin-shaped patches that may ooze or crust. No central clearing.

So how do you tell the difference?

Many of these conditions can itch, but the *pattern* of the rash is what really matters.

Typical Tinea corporis often has:
• A scaly, raised border
• A ring that expands outward
• Central clearing

Misdiagnosis often leads to unnecessary use of antifungal creams and steroid creams, which may delay proper treatment.

If you’re unsure, it’s always best to see a qualified dermatologist for an accurate diagnosis.

Follow African Derm Hub for more skin education tailored to darker skin tones and African populations.

Image sources: DermNet, VisualDx , Healthline.

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