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Polymorphic light eruption on the arm
Polymorphic light eruption on the arm

Polymorphic light eruption

Definition:

Polymorphic light eruption is a common reaction to sunlight (ultraviolet light) that occurs in light-sensitive individuals. Small red pimples and blisters appear on the skin within 1�- 4 days after exposure to sunlight.

They disappear within 2 weeks. The cause is unknown. Some experts think it is a type of delayed allergic reaction. Controlled ultraviolet light exposure may reduce some of the symptoms.



Alternative Names: Polymorphous light eruption

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Review Date: 7/22/2005
Reviewed By: Jonathan Kantor, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.

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