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Pityriasis rosea

Overview

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The main sign of pityriasis rosea is a round scaly patch followed by a widespread spotty rash on the chest, back, arms or legs.

Pityriasis rosea usually goes away on its own and does not need treatment. If it's uncomfortable, you might need a cream or antihistamine tablets.

The exact cause of pityriasis rosea is not known, but it may be caused by a virus. It cannot spread from person to person.

Pityriasis rosea is a skin condition that causes a single, round scaly patch followed by a widespread spotty rash. It does not usually need treatment.

Page last reviewed: 06/09/2023
Next review due: 06/09/2026