Dermatology Questions? Ask an Online Dermatologist.
Hello and welcome. I'm Dr. Chip
I looked at your photos, and this is an allergic dermatitis. It can be caused by contact with an allergen as with new soaps, new detergents, etc., but quite often we never figure out what triggered it.
Nothing too serious and you can take Benedryl or Claritin orally and apply Calendula or Caladryl over the counter creams for a couple of days, at which time it should resolve.
Please let me know if you need any more information.
Hi again--then it's a similar condition but that's called temperature urticaria. It's treated with oral Claritin or Zyrtec daily. Usually it stops happening within a few months
Sorry for the delay.
That's a possibility but usually it's cold that causes it, not heat.
If it were, there's no real treatment for it.