Pityriasis rosea

Pityriasis rosea (say "pih-tih-RY-uh-sus ROH-zee-uh) is a common skin problem that causes a rash. The rash often begins with a herald patch—a single, round-to-oval, and pinkish, purple, or red-brown patch that is scaly with a raised border. Days or weeks later, more small patches often appear on the belly, chest, back, arms, and legs. Patches sometimes spread to the neck or face.

Pityriasis rosea is usually harmless.

Current as of: November 16, 2023

Author: Healthwise Staff
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Pityriasis rosea

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