Condition
Polymorphic light eruption
David Cohen, M.D.Published 3 May 20051 min read
Key points
- 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 to 4 days after exposure to sunlight.
- 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
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 to 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.
Written and revised by
David Cohen, M.D.
Our doctors write and review articles for accuracy and keep them up to date.
health.am provides general information, not medical advice. Always consult a qualified health professional about your own health.