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What causes erythrodermic psoriasis?

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Psoriasis is an autoimmune disease. Instead of fighting infection, your body’s natural defense system attacks healthy tissue. You’re more likely to get erythrodermic psoriasis if you already have plaque psoriasis, especially if it’s unstable. That means the raised, scaly patches don’t have well-defined edges -- but it also affects people who’ve never had the disease. It can appear if you suddenly stop taking your oral psoriasis medication. Other triggers include:

  • Alcoholism
  • Drug reaction
  • HIV
  • Infection
  • Oral steroid medicine
  • Severe sunburn
  • Stress

From: Erythrodermic Psoriasis WebMD Medical Reference

SOURCES:

American Academy of Dermatology: “Psoriasis Case 6: Erythrodermic psoriasis.”

FDA. “FDA approves Amjevita, a biosimilar to Humira.”

Lee, S. June 2006. Yonsei Medical Journal,

National Psoriasis Foundation: “Erythrodermic Psoriasis.”

Rosenbach, M. April 2010. Journal of the American Academy of Dermatology,

UpToDate: “Erythroderma in adults.”

Reviewed by Stephanie S. Gardner on October 7, 2018

SOURCES:

American Academy of Dermatology: “Psoriasis Case 6: Erythrodermic psoriasis.”

FDA. “FDA approves Amjevita, a biosimilar to Humira.”

Lee, S. June 2006. Yonsei Medical Journal,

National Psoriasis Foundation: “Erythrodermic Psoriasis.”

Rosenbach, M. April 2010. Journal of the American Academy of Dermatology,

UpToDate: “Erythroderma in adults.”

Reviewed by Stephanie S. Gardner on October 7, 2018

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What should I do if I think I might have erythrodermic psoriasis?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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