I’ll probably get blasted but....
I think that part of the responsibility of keeping animals is recognizing where to draw the line between helping them when recovery is likely, and prolonging their suffering when it isn’t.
It is always hard, but you have to do what is right for them, not for...
I’m sorry for you and your hen, but looking at those pictures I’d say her tongue is dead and necrotic, which would account for some of the smell in the face area.
I know you’re trying but if she was mine I’d end her suffering.
I’m sorry!