pushed her jaw out of line and now she is having trouble eating and drinking. I have tried to give her what I could. The protruding growth is visible from the inside of her mouth and looks to be almost fully blocking her airway.
Take a picture of the inside of the mouth/throat and post it here.
Is the swelling underneath the mucosa or rather like a yellowish/whitish substance sitting on top?
Do you keep other fowl such as turkeys or pidgeons with your chickens, or maybe any other neighbour that does?