solar urticaria

Question 1

most common in what age?

Answer 1

20-40 yo. women. within sec to min after light exposure. resolve in 1-2 hours. rarely lasting more than 24 hours.

Question 2

Tx

Answer 2

sunscreen broad spec
Antihistamine
H1- loraradine , cetirizine, fexodenadine.
1st line tx- Drugs, sun avoidance, broad spec sunscreen

cyclosporine 4.5mg/kg/day and IVIG
plasmapheresis remove photocieculating allergen.