I'm not sure she needs oral antibiotics at this point. I see no signs of infection. If the wound doesn't smell funky, she may not need it at all. You have done a tremendous job with her. It's gonna be a task to reintroduce her to the flock and you may not be able to until spring and then it will be like integrating a new hen. I know you have concerns about her long term health and the part that concerns me most is the tail bone. I've never dealt with an injury like that and am not familiar first-hand with the ability of a chicken to heal. When she's healed enough, she may benefit from a long chicken saddle with a tail loop added to hold it onto her tail.... when she's ready. I'm totally impressed with her and her nurse!
