A 40-year-old member asked:
what is a solar urticaria allergy?
2 doctor answers
Dr. Madhukar Punja answered
Specializes in Allergy and Immunology
Allergy to sun: Its a type of urticaria (hives) triggered by sun's uv rays. It is a rare condition and can cause severe discomfort to individuals with this condition when they go out in the sun. The exposed skin breaks out in red raised bumps with severe itching lasting for several hours. Sunblocks, antihistamines and limiting the time of exposure to sun can alleviate this condition.
Answered on Sep 28, 2016
Dr. Michael Zacharisen answered
32 years experience Allergy and Immunology
Very rare: Solar urticaria is a rare type of physical urticaria or hives. The hives in this case are induced when the skin is exposed to certain wavelengths of light. It primarily affects exposed skin but hives can be seen other places. The exact mechanism is unknown. Usually if a skin reaction occurs after exposure to sunlight, a photo-allergic or photo-toxic reaction involving a medication is sought.
Answered on Dec 9, 2012
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