Southern Belle
In addition to the soaking baths, try this:
Make an epsom salt paste adding just enough water to make the paste. Spread it on the infected area and then wrap it in Saran Wrap. It's kinda messy, but it works.
I tried everything when I had poison ivy, but nothing worked until I decided to try the epsom salts and it cleared it up within just a few days.....and I had had poison ivy for weeks!
I hope this works for you!
Paulette