I’m 33 and have had trouble with something very much like cholinergic urticaria at least as far back as my teen years. It affects my legs and feet, and is brought on by my skin being cooled then heated. Walks on cool/cold days are a real challenge. Once my legs cool due to the outside temp, but then start to warm up from the physical activity, they begin to itch, painfully. To stop it, I need to sit down and let my legs cool. It’s best to take off socks and shoes and roll my pants up. Once they’re cooled and the itch has passed (several minutes), I can carefully warm them up again, slowly, but the attack may return.
If it’s cold enough outside, the attack may not occur – my legs stay chilled. But then I have to be VERY careful about going inside. That can be the worst, transitioning from a cold walk to a warm indoors. I have sat out in sub freezing weather with my pants rolled up to cool off a bad attack.
Also: rubbing. Either just the material of the my pants or an object carried in a pocket, the friction can cause a localized attack, even if I’m otherwise fine.
It’s one of the banes of my life. I love cool weather and the outdoors. But the attacks are very painful and keep me inside when I’d rather be out.
(the post above was submitted by a reader).