ya, it's normal. your skin reaction to what ever your sweating out your pores
or clothes rubbing on your skin. try not to wear cotton when you workout, it retain moisture.
Last edited by geobuilder; 05-21-2009 at 08:00 PM.
Sounds like hives. Either just plain exercise induced or possibly a low level allergy to your detergent that really only gets exacerbated when your pores open wide.
I would also look in to wearing only "technical" wicking fabrics to keep the skin as dry as possible.