So it's been a while and I was pretty worried about Chippy for a number of reasons. She was already in the middle of a molt and then the injury happened, and then she got sour crop as well

I ended up putting her in the crate and putting it in the middle of the run, covering the top and back side, and wrapping some protection around the corner I put a roost in as well. Luckily it seems the wounds on her butt were healing fine on their own.
I treated her with some olive oil, then coconut oil, and vaginal yeast infection cream because I had some on hand. I massaged her crop after giving her her medicine, and also whenever I had a free moment as she seemed to like it (at the very least she didn't hate it lol). I also tried the lemon juice-ginger-cinnamon-paprika mixture once, not sure if it helped or not but I gave it a shot once then stuck to the vaginal cream for the most part since I was pretty sure the problem was yeast, the ball was doughy and would get softer with water. I periodically gave her CBD oil as well, since CBD is a moderate antifungal, reduces inflammation, and it can help with pain I figured it couldn't hurt. I treated her with the ducosate sodium for a day or two and I think it helped loosen everything up. I also tried a crop bra, unfortunately she didn't get used to it at all and whenever it was on she would only stumble around, would fall off the roost etc., perhaps because she's also molting and it was uncomfortable due to that? So I used it a bit, only once overnight before I realised she just wouldn't adapt to it rn.
I was pretty worried about her because she lost a lot of weight, her keelbone was very prominent and she weighed practically nothing to pick up. After the first couple days where I avoided chicken feed and either fasted her or gave her boiled eggs, I started giving her chicken feed softened with warm water, plus some dried black soldier fly larvae for protein. My biggest worry was that she would just run out of energy/reserves to survive :/ I ended up moving the crate inside for a few days because temps dropped below freezing and I wanted her to 1) have access to water at all times and 2) not have to maintain her body temperature on top of everything else. I also ended up sticking another hen, Dodo, in there with Chippy because she was picking at my lowest-ranking hen's growing feathers and because I figured the company might help (Dodo gets along fine with Chippy and it was actually pretty cute, she kept trying to hide under Chippy even though Dodo's bigger XD). After a couple days inside the temps stopped dipping below freezing and I stuck the crate out on the covered porch, where they remained until Chippy started getting better.
I'm not sure what finally got her crop moving again but she seems to have made a full recovery. One day the ball was noticeably smaller and it just got better from there. She's back up in the yard with the others and almost done her molt, and seems to be back to her old self. I'm still keeping an eye on her and checking her crop but I'm glad I didn't lose my most personable hen
