I use to take Fexofenadine and Amitriptaline (not sure how you spell it but it treats the nerve endings and also depression in the higher dose, mine was for the nerve endings). I had chronic Urticaria and I know exactly how you feel with itching I also got very swollen skin. When I decided to have another baby my Consultant said the only medication safe to take was Piriton, or that becoming pregnant may get rid of my urticaria which I'm pleased to say is the case with me. My GP did some research and said if mine flares up I can take fexofenadine but I'm very dubious. x