It sounds like you are doing very well. Keep the faith, it may take a few weeks of this- very wounded and depressed behavior- before you start to see improvements. I used a clean, soft paint brush to smooth on the Neosporin, it could get to the places with evenness my hand could not. Both she and I appreciated it as it was kinder than my hand. I did cut a soft T in a large chicken saddle shape but ended up never using. Even though she was beat, her body was mending, it took about two weeks for me to realize I had done the right thing by NOT culling her, seeing her down I had lots of guilt about her suffering and could not wrap my mind around how this big heal was going to happen, especially with her age. But it did.
A big game changer for us was taking her out to be with her flock mates. I set her up in a contained area and threw scratch so the flock would come visit. It was amazing, much of Mazie's pain was the fear and isolation, being a prey animal, no surprise right? I did a little here and there at first as I was dodging rain drops and with quiet time in-between and I gradually had her out there for hours with her flock in the filtered sunshine. That is when I saw we had turned the corner.
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Keep an eye on her poop. Remember she needs calories anyway you can get them down. Mazie rejected favorite foods many times so I just found another. Anything for calories. I was lucky enough to have just started a mealworm colony and that was always a sure thing and great protein and also, canned cat food, papaya and tomato. Always crunchies on the side either moist or not but that ebbed and flowed.