Severe bumble foot, Treatments not working, help!

[ajgajtkowski]

I have a chicken with a severe case of what we believe to be bumblefoot. We discovered she had a very swollen foot with a bumble scab about 4 months ago. In response, we soaked her foot in Epsom salt water, removed the scab and the core, and bandaged it up with a bacitracin antibiotic. Ever since then, we have been in a constant cycle of soaking, bandaging, thinking she was on the mend, putting her back in the coop, and discovering that she needs treatment again. It was looking much better a week or so ago. The foot was still swollen, but the wound had healed, deflated, and closed up nicely, so we put her back in with the rest of the flock. Today we went to check on her, and her bumble spot looks like it's going to burst with black, infectious ooze. What else should we be doing to help her out? This has been going on for months now, and any progress forward seems to turn right back around. I'm a bit at a loss as to where to go from here and could really use some suggestions.

The swollen scabbed picture was from 4 months ago, and the black swollen picture was taken today.

 

[Bawkbok]

That doesn't look like typical bumblefoot to me especially with it being on the top of her foot. Not sure what that is so seeking help from others for you.......
@Wyorp Rock @coach723 @Eggcessive