Medical Questions > Conditions and Diseases > Allergies Forum

like Cholinergic Urticaria but hives in winter too

Hey all,

I'm wondering if anyone else experiences this and has any advice. I have read a lot about CU and have similar symptoms but not quite. From what I read, people mostly get itchy and hives from being hot or sweaty. I experience insane itch when I am active in the winter time, say if the temperature is below 60 degrees and I'm walking vigorously or hiking outside. I will also itch if my skin is cold and I begin to exercise inside. Even once I warm up, I still itch. Unlike sufferers of CU, I don't typically sweat when this happens. I'm usually not exercising that much to sweat, so I'm not sure what this condition is.

For some background, I do recall feeling itchy during walks on chilly days during my childhood. And there were many summers when I would get heat rashes. And there was one summer in my early 20s (I'm 32 now) when I would fitness walk for a couple of hours and find my back covered in hives (and sweaty). That only lasted for the summer however.

So, any ideas? I haven't tried to treat this since I just started researching it. I didn't even realize it was a common problem. I've just avoided outdoor exercise in the winter, figuring it wasn't in the cards for me.

Thanks in advance for your thoughts!
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replied January 14th, 2008
I find that when I do anything physical I have the same feeling mainly on my back. It's just like you described, a thousand mosquitos or a nettle rash feeling all over my back. I have also found that the same thing happens if I take a hot shower, although not ever time but it is very uncomfortable. At first I though it was the washing powder or detergents that my be causing this, but I ruled it out after drying of naturally and not using detergent when showering.

However my problem has now become worse. I had no rash or visible skin issues to start with, but now I have a cluster of small red rashes on my back, which has spread to my arms. There is a possibility that it is not related to the itchy feeling I get when exercising but it’s very uncomfortable. Having checked a few things on the net, there is nothing for it other than antihistamines.
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