Polymorphic light eruption Health Article

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