Guest guest Posted January 16, 2009 Report Share Posted January 16, 2009 What is solar urticaria? Solar urticaria (SU) is an abnormal reaction to sunlight or artificial light. When exposed to light, the skin cells of someone with solar urticaria release potent chemicals (including histamine), causing their blood vessels to open and fluid to collect within the skin. Their skin feels itchy and has red patches, which may be swollen. These may look like weals or a nettle rash, and can take up to an hour to appear after exposure to light, then coming on quickly and settling within a similar period. There is no permanent change to the skin. (scuse me but I beg to differ.... Clare in Tasmania) It does not just go away etc etc etc................ but there are more articles than this one http://www.google.com.au/search?hl=en & q=Solar+Urticaria & btnG=Search & meta= http://www.tiscali.co.uk/lifestyle/healthfitness/health_advice/netdoctor/archive/000553.html Quote Link to comment Share on other sites More sharing options...
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