About three years ago, around Memorial Day, I got poison ivy on the inside of my forearms while pulling weeds in the yard. Now, every year since then, a small rash of poison ivy appears on the inside of my forearms around the end of May even though I haven't been pulling weeds or been in contact with any outdoor plants! The recurring rash is never as bad as the first one was and may even be getting milder each year. Can poison ivy recur like this, or is this some other type of rash? Thanks for any help you can give me!