Fat necrosis. Draining fat. Will one buttock be bigger than the other? (Photo)

. Started off as a soft painful lump that eventually opened and started to drain fat, then blood then fat again. I'm worried it's going to leave a drastic difference in my results. Will one buttock be bigger then the other? Also the holes in the area seem to be getting bigger, will this open up to one huge hole and if so what happens after that? I'm starting to get extremely nervous. My Dr put me on 2 antibiotics As a precaution (no infection) ... when will this stop draining and begin to heal?