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Pityriasis rosea

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In short

Pityriasis rosea is a common skin rash.

Worth knowing5

  • The rash appears in 2 stages.

    NHS website
  • The first stage of the rash is a single, scaly patch called a herald patch.

    NHS website
  • A widespread rash of small, scaly spots appears about 5 to 15 days after you get the herald patch.

    NHS website
  • The exact cause of pityriasis rosea is not known.

    NHS website
  • Pityriasis rosea cannot spread from person to person.

    NHS website

What helps2

  • Pityriasis rosea usually gets better on its own within a few months without any treatment.

    NHS website
  • If the rash is uncomfortable or itchy, a pharmacist might advise: using an emollient (moisturizing treatment for the skin) on the rash; taking antihistamine tablets to help with the itching; avoiding using soaps and body washes.

    NHS website

See a provider if2

  • See a health care provider if you have a rash that's still itchy after trying pharmacy treatments like emollients or antihistamines; you have a rash that has not gone away after 3 months.

    NHS website
  • A new rash during pregnancy needs a call to your provider right away. Pityriasis rosea in the first 15 weeks of pregnancy has been linked with miscarriage and premature birth.

    NHS website

Sources

Contains public sector information licensed under the Open Government Licence v3.0.

These pages describe what the sources say. They cannot say what is going on with your skin.

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