Sounds like she is doing very well!
If it were me I think I would concentrate more on applying Neosporin than the Blue Kote. The Blue Kote might mask discoloration of the tissue. Others more familiar with Blue Kote can help you more with that.
If you can, please post a pic of the area that concerns you.
The signs of tissue death can vary with time---extreme paleness (tissue has very poor perfusion), cyanosis (blue color, also poor perfusion), very dark brown or black (necrosis---death of tissue), and on to various types of gangrene and rot. There wouldn't be much of an odor unless there was gangrenous or infected tissue. Infections are usually warm and reddened and eventually almost always have some sort of drainage associated with them.
You are doing a marvelous job---amazing!!!