Dermatology Questions? Ask an Online Dermatologist.
Hi--the photo would help Will
Does this come and then go away completely?
And what have you tried for it so far?
This looks like a case of what's called heat urticaria--sort of a kind of skin allergy to heat and humidity
I'd suggest daily Zyrtec or Claritin by mouth and for the skin itself, Caladryl lotion or the equivalent
That should clear it up Will
Let me know if you need any more information please