Rash whenever body gets hot?

Question

Does anyone get a painful bodywide electrical sensation whenever they do exercise and their body gets hot? Or whenever the weather is dry and hot? What is this?

Answer 1

Sounds most consistent with Cholinergic Urticaria, in which you get a hive-like rash that can itch and/or burn after exercise, sweating, or taking a hot shower. It typically goes away within a couple of hours.

If this is what you have, it is not dangerous - only annoying. If it is really aggravating and bothering you, it can be treated with anti-histamines, such as benadryl (which you can get over the counter). Sometimes, oral steroids are necessary - but not a good idea unless very severe, etc.

BUT - "rashes" are best seen to figure out what they are. It is like saying, I have a picture on my wall - what is this a picture of?

Next time it occurs, see if you can get in to see your doctor to make an accurate diagnosis.

My bet is still urticaria, though. A chronic, physical urticaria sometimes called cholinergic urticaria. If benadryl doesn't make you too sleepy, it would be worth trying...

Hope this helps...