It doesn't take a board-certified dermatologist (but apparently it takes more than a NP?) to immediately see that whatever's going on here is a lot worse than a "heinous case of poison oak/ivy". FYI, if your leg/foot looks like these and you have blisters erupting with fluid, you should stop reading this post and go to your local emergency department, now. Things on the differential: venous stasis ulcer, cellulitis, possibly osteomyelitis; i.e. things that could all cause you to lose your foot if left untreated. Real friends don't try to solve their friends' medical problems by fishing for answers on Facebook!