My mastiff got through our chicken fence and got one of my RIR's. As I got there, Red was still alive and still is. I have brought her in and have her with some egg and water. She won't eat or drink for the moment. She is just panting. I looked over her to see the damage, and there is a huge hole in her back. Is there anything I can do for her? I've attached pictures... ETA: The hole in the back doesn't look as bad on the pictures as it does in person. Her skin is torn and I am not sure what I am looking at...The hole is probably about as bis as my palm.