I get poison ivy by the wind carrying the oils in the air, I can't even live next to the stuff. For me calamine lotion, anything with alcohol, and hydrocortisone work the best, but none of it works great, just okay. If you keep having this problem there are pills you can take to get immune to ivy. Also if it spreads to to much you can go to the doctor and get a steroid injection or steroid pills. I had to do that when I couldn't see.