Thanks for sharing what you did to help heal your hen after she was attacked by a raccoon. Are you a vet? I am not sure that everyone would be able to get the inject-able penicillin like you did. I certainly wouldn't have any idea where to obtain it. If I did get some I wouldn't know where I should inject it at.
Details that address these issues would make this article better. Also, a warning about not using antibiotic ointment/cream that has pain medication added in. (That is what I have read in multiple articles here on BYC).
Did your hen drink the gatorade on her own or did you have to use a syringe or something in the beginning.