honeypot link
skip to main content
MSDMERCK MANUALConsumer Version
HEALTH TOPICSHEALTHY LIVINGSYMPTOMSEMERGENCIESDRUG INFORESOURCESCOMMENTARYABOUT US
homeHEALTH TOPICSHEALTHY LIVING
Search icon
  1. Home/
  2. Quick Facts: Skin Disorders/
  3. Psoriasis and Scaling Disorders/
    Psoriasis and Scaling Disorders
    • Pityriasis Rosea
      • What is pityriasis rosea?
      • What causes pityriasis rosea?
      • What are the symptoms of pityriasis rosea?
      • How can doctors tell if I have pityriasis rosea?
      • How do doctors treat pityriasis rosea?
    • Psoriasis
      • What is psoriasis?
      • What causes psoriasis?
        • Flare-ups
      • What are the symptoms of psoriasis?
      • How can doctors tell if I have psoriasis?
      • How do doctors treat psoriasis?
    MSD
    • About
    • Disclaimer
    • Permissions
    • Privacy
    • Cookie Preferences
    • Terms of use
    • Partnerships
    • Contact Us
    • Veterinary Manual
    • Global Medical Knowledge
    • Mobile App
    MSD

    Copyright© 2025Merck & Co., Inc., Rahway, NJ, USA and its affiliates. All rights reserved.