Oh wow that sounds so awful! I would have broken down and gotten steroids lolOnce it goes "systemic," poison ivy (and I would assume, oak, as well) can pop up anywhere and everywhere on your body, no contact involved. My poor SD had it so badly that she looked like the old-timey pictures of mumps. It was even in her mouth - and Heaven knows, she never ate the stuff! She practically lived in the tub (oatmeal baths) for three whole days. She was absolutely miserable!
oh gosh! I don’t think she’d mind though. She’s shared it with me before if I shared my bleach so maybe you gotta offer something? 