Herald patch in pityriasis rosea

Close-up of a herald patch on the chest.

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.

Current as of: November 16, 2023

Author: Healthwise Staff
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