Hello. For about a week now I ve had a rash on my forearm, at first i thought I d been bitten but it seems to have grown in size (a little smaller than a dime in diameter)and only itches if I happen to itch it first. It s red, raised, and warmer than my skin. I ve notice two other spots that are similar on my stomach and breast. I have guttate psoriasis and this is not that. Not sure if I should see the doctor or try to wait it out. Thank you very much.