Anyone suffer from Urticaria (heatrash/hives)


I only started getting this when I went over the 70kg mark. Now I have it all the time, when I get stressed, warm, cold. Does anyone else get this? What helps for it? Doctors don't know much about it, just prescribes antihistamine, it works but i don't want to take it every day and it only brings down the symptoms slightly, does not cure it.
yes mine is on my arms too and hands, it used to really bother me at the start of the summer, but then i couldnt live in cardigans in the heat we had so i had to brave it out,
infact having the rash helped spur me on to do the cd, as i thought well its bad enough being spotty but being spotty and fat is awful lol