Eruption of transient oedematous swellings of the dermis or subcutaneous tissues in sun-exposed areas within several minutes following sun-exposure. The erythematous, oedematous urticarial papules and plaques are less likely to occur on chronically exposed skin sites such as the face and dorsum of hands than on normally nonexposed sites. Allergic type I hypersensitivity may be causally associated with this disorder.
Solar urticaria, Solar urticaria, NOS
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