I was sitting outside the other day and I noticed my palms sweating. Then I feel my hands swelling up and they were turning bright red. I also noticed an itchy rash on both arms and the back of my leg. I went to the doctor and he thought it could have been an allergic reaction to something. I think it might have been from the heat because later that night I took a nice cool bath with aveeno bath powder and the rash went away. The rash didn't even feel bumpy. It looked like tiny red spots underneath the skin. I wonder if it is prickly heat. I'm not really sure because I have never had this before.

A few days later, I got the rash again on both arms. I also saw some blotchy red spots on my upper chest. I panicked because I didn't know what was going on. This time I wasn't outside. I had taken a bath with dove soap and warm/hot water. I wasn't sure if it was the soap because I have used this brand of soap before. I am so confused. I put some Cortisone cream on my arm and the rash went away. My arms still felt itchy though. It almost felt as if someone was poking me with needles. I can't seem to figure this out.

That seems like an allergic reaction to me. No expert though.