I have a 3 year old White Plymouth Rock hen. I noticed this evening her vent was all bloody and she was sitting on the floor of the coop and not roosting with the other girls. I soaked her in epson salt and water and washed away all the blood on the outside. I spray vetericyn in her vent. I don't know what else do you! Her vent is not bulging out or anything. It's just bloody. She is my favorite hen and I would be so sad if she dies. Please help.