Corey - if you can get a picture of it and put it in our upload area, I can give it a shot at identification. Otherwise, describe the plant and its leaves as best you can.
FYI - there are a number of plants that can cause a dermatological reaction. I for one break out handling cucumber plants. So while it may not be poisonous in the "traditional" sense, it may be that for you it causes an allergic reaction.