so sorry your hen is not doing well. I am also new and can offer little advice except to try and give her some food and water. I get concerned when I read that people administer a bunch of meds without really knowing what is going on, some may be harmful to an already weak hen. You can search each of these possible infections in the BYC search engine, you may find some simular symptoms to help you to Dx her problem. She is lucky to have you and your daughter as her care takers, some humans are as well taken care of. Good luck, i hope she gets better.