A small scab came off really easily today (I wasn't trying to get it off, I was just examining her foot). I checked it 6 hours later and a tiny amount of the rim of the area is a black, almost like there was dirt under her skin. I don't think it was dirt though so I'll assume necrotic tissue. I took the new scab off and only a tiny bit of white was attached. It looks nasty in there and she's limping a bit. I do not have the stomach to slice it out. So I put Neosporine on it and sent her on her way.
LUCKILY the vet has special hours this week, and Mally has an appointment at 6pm tonight! So I've got the dog crate loaded up in the back of my car, along with her special water bowl and a towel. It's going to be a long evening, and I'm sure she'll be back on antibiotics again. Poor little girl, and my poor little pocketbook, but damned if I don't love my little duckos.