Almost a year ago. I got these 2 itchy red rashes on the back of my legs. My doctor said it could be from stress. What could be the cause of it?

RED ITCHY RASHES. SORRY, STRESS WILL NOT CAUSE THESE. THINK OF INSECT BITES, MEDICATIONS, POISON IVY, ETC DO YOU HAVE A CAT OR A DOG? HOW LONG HAVE THEY BEEN THERE?