heat induced hives

[savvydawn]

hello.  I have been getting hives when I get hot/sweat.  If I'm stuck in a warm place for awhile, i will start to get ichy and then hives will show up usually around my bra area. It is worse when I exercise, I get hives all over my body. I don't have a hard time breathing though.  This started sometime this winter.

I can't think of anything that I've changed. still use the same laundry soap, dish soap, shampoo, body wash, lotion, cleaning products.  I haven't eaten anything new.

My dr says that I have heat induced hives and put me on 24 Zyrtec and 25mg of Benedryl. It worked for about a month and now I'm breaking out in hives again when I exercise.  

I haven't had any allergy tests done yet.

A fitness friend of mine thinks that I might have a build up of toxins and when i sweat the toxins are being released. I haven't talked with my dr about that yet.  Is there any truth to this?  I do drink a good bit of regular soda.

Thanks everyone

[Coldiwal]

After reading  Dr. Rajput's post I gained some insight about my hives which are definitely heat induced. I got an antihistamine shot yesterday from my dermatologist because I had a bad outbreak of hives along the back of my upper legs and buttocks. Changed bedding, nightclothes (all of which were 100 flannel cotton, then eliminated new laundry detergent and softeners. Now I am thinking that maybe it is the spicy Indian cuisine Tasty Bite lunches that I love. All vegetarian, 1 minute microwave... Great for folks who don't want to cook twice a day! Will see if I get it again tonight because I just ate a Vegetable Tikki Masala (spicy). Would upload the pictures of my frightening outbreak outbreak but I do not see that option.