Polymorphous light eruption

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Introduction Signs and symptoms Causes Risk factors When to seek medical advice

Screening and diagnosis Treatment Prevention Self-care

Introduction

Polymorphous light eruption is a common rash that occurs as a result of sensitivity to sunlight (photosensitivity). People who are sensitive to sunlight can experience a reaction after an episode of intense sun exposure, usually in the spring or early summer. The rash typically appears as itchy, red spots that develop up to a day after being in the sun. The inflammation occurs most often on the front of your neck and chest as well as your arms and thighs.

Sometimes called sun poisoning, polymorphous light eruption usually resolves without medical treatment in seven to 10 days. But it can recur and become worse the following spring or summer. Cortisone creams or antihistamines can help if the rash is uncomfortable. Gradually increasing sun exposure times in the spring and avoiding intense sun exposure is the best way to treat and prevent polymorphous light eruption.

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Signs and symptoms