Because some people just CAN'T believe that people can be allergic to wool and/or its by-products. I believe you. I'm also allergic to dust mites (they're gross little creatures), plus the ones that exist on everyone's skin. How about that one? I'm allergic to myself. To continue the list - smoke.... ask me if I'm glad smoking has been banned just about everywhere. The smoke includes ALL smoke - such as farmers burning stubble, smoke from a campfire.... blah, blah. I'm allergic to pigeon feathers and DH keeps pigeons.... so I don't go near the little dears. How about make-up? I'm now a dowdy old woman because it seems all I can wear without my eyes watering is lipstick. And the list goes on. I feel for you, and hear your issues. ;>)
Shelagh