Sick chicken! Eye closed and raspy

[Aspiringfarmlady]

Hi all!
One of my chickens is having a problem. She was fine free ranging yesterday. And today she won’t come out of coop. She is standing in the corner with one eye closed. It is inflamed all around the closed eye. I have not seen her open it at all. She closes the other eye for long periods also. She is also making a raspy hard breathing sound. Gurgling kind of noise. Her beak looks very strange to me. There are dark spots. It’s slightly open and maybe it was injured. It seems like some fluid is dripping underneath the beak as well. And in her mouth and nostril. I’ll add photos.
We’re recently had issues with rats entering the coop at night. Please any advice. She is about 5 years old. Thank you!!

 

[Eggcessive]

It does look like her beak is pretty injured. Those injuries can happen when the beak gets into wire fencing as when they are being run off or chased. Can you try and open her right eye to see if there is an intact eye, any bubbles or a foreign body (dirt, etc?) I would flush the eye twice a day with saline eye wash, and apply a small dab of either Terramycin Eye Ointment or plain Neosporin into the eye. Is she able to eat and drink? Here is some info about repairing injured beaks:
https://the-chicken-chick.com/repairing-chickens-broken-beak/