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Encyclopedia Home > Diseases & Conditions (A-Z) > Polymorphic light eruption

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
Review Date: 2007-04-16
Reviewed By: Michael S. Lehrer, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
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The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © HealthProfessor LLC. Any duplication or distribution of the information contained herein is strictly prohibited.