I am a firm believer of the body's ability to heal itself. I think she will get through this with your help, the warm compresses and the topical. Now we just need to get her to eat. A body can't heal if it doesn't have any calories in it....actually it needs FAT to heal wounds. I was told this when my dad had his open heart surgery by the nutritionist.
Let's think outside the box.....
Canned cat food, baby food, scrambled eggs, chicken breast, ricotta cheese, any type of beef, etc....
Something WILL tempt her to eat especially since she has been hydrated. That in itself can make them even more nauseated. Does she like ice cubes? What about freezing chicken both into cubes?
If you are anything like me.....I am terrible about smothering. I have to tell myself to leave them alone sometimes. I will be right in their face offering them too many food items to count (when they have been ill) and it overwhelms them (I think). I have noticed in the past with many pets that when I actually leave them alone and they get a chance to make up their own minds that they will eat what is near.
Praying that she feels better very soon!