Sounds like you are still being exposed to the oils. If any of your "loved ones"-- human or pets, where ever they have been can be sources of "contamination" that will cause additional poison ivy attacks. If you sit in a chair where someone has the oil, beds, towels, --- ANY WHERE - if you are washing their clothes -- ANY WHERE - in a car they have sit in --- and needless to say, "those loving - tender moments" can be a source of contamination. Watch CHAIRS - the back of chair legs. And if you allow your pets on your bed, sofa, the oils are going to be transferred there also.
And I am sure you know you also are feeling the poison inside your body - not just outside your body.
Work with a DOCTOR or HOSPITAL. You have it too bad to try the "self help." Been there and have permanent scars from self help advice.