Quote Originally Posted by GLC1968
...For me, it's definitely heat-induced and not just leg heat...but core body temperature heat! I'm just happy that I now know how to control it.
I've never gotten them from cycling, but I once broke out in very interesting hives from spending some time in a sauna. It was quite weird. I got itchy hives on the tops of my feet, insides of my elbows, backs of my knees and my face swelled up to the point that I looked quite bizarre (but not enough to cause any breathing problems). I'm not allergic to anything so it was a suprise to say the least. I can only think that it was related to the heat of the sauna and I have avoided going in one since then.