I grew up with a lovely long haired cat quite happily,but when my older sister moved out and got a short haired cat I was allergic to it. If I used to visit her I would sneeze constantly, my eyes would swell up and stream, my mouth and throat would be sore and itchy. She would bring it with her when she came to stay at Christmas and I'd have the same symptoms, didn't stop her bringing it though & didn't stop me going to visit. My mother just used to hand me some aspirins & clean hankies neither did any good ??? I just had to put up and shut up. My other sister also had a short haired cat, but I wasn't allergic to it!