A 41-year-old member asked:
what causes photosensitivity rash?
1 doctor answer • 2 doctors weighed in
Dr. Ally-Khan Somani answered
Dermatology 19 years experience
Many causes: Causes for photosensitivity) can be classified into 1) those caused by the presence of an underlying skin condition (eg., lupus); 2) chemicals/drugs topical or ingested which are photosensitizers (eg., tetracyclines, dyes); 3) genetic diseases (eg., xeroderma pigmentosa); 4) metabolic disorders (porphyrias) and 5) idiopathic (unknown).
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A 33-year-old male asked:
What is the definition or description of: Photosensitivity rash?
1 doctor answer • 1 doctor weighed in
Dr. Edward Keuer answered
Specializes in Dermatology
Ultraviolet light: Photsensitivity (PS) refers to the inflammation that results from the interaction of UVL with the immune response. There are a variety of causes: medications (topical or systemic), immune disorders (e.g. Lupus), and metabolic or syndromic. PS is distinguished from phototoxicity (sunburn).
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Last updated Jun 17, 2015
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