I am so sorry the little poodle is going through all this. It sounds like ya'll are doing all you can to help her. Of course the vet care and guidance is of the utmost importance. One thing I can suggest that my vet recommends for wounds is lavender oil. You can get the essential lavender oils at most health food stores. I mix it with a little coconut oil as the carrier oil. Lavender oil is one thing I would not be without. You just have to make sure you use the 100% pure therapeutic lavender oil. Here is a link that explains the benefits:
The Many Benefits of Lavender
FYI....it works wonders for toothaches too.
I pray everything works out. I would definitely give up just yet. Please keep us posted.