Bless your heart. The last time I had it I was pregnant and I got it on my stomach. It was awful!! The juice from the bumps DOES NOT spread poison ivy. Poison ivy spreads because the oils have not been washed off or as I think is in your case, the infection is so bad it has gone systematic (inside your body). I can look at it and get it!! I always make sure in the summer to wash off really good when I come in from working in the flower beds or garden with Burts Bees Poison Ivy Soap. It won't help you right now, but it will help to keep you from getting it again. I think the soap is about $5, but it is well worth it. You have to get the oils off. Don't use a moisturizing soap. Use a soap that 'cuts grease'...dish detergent.
What I find relieves the itch, but is painful, is to rub the area down with rubbing alcohol. I'll take pain anyday over the itch from poison ivy.