Slide show: Types of psoriasis
Image of erythrodermic psoriasis
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Erythrodermic psoriasis, the least common type of psoriasis, can cover your entire body with a red, peeling rash that can itch or burn intensely. It may be triggered by corticosteroids or other medications, severe sunburn or sensitivity to light during phototherapy treatment, or by another type of psoriasis that's poorly controlled.

Treatment of erythrodermic psoriasis usually requires prescription oral medication, medicated wet dressings and topical steroids. Combination therapies and hospitalization may be necessary for severe cases.

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