Injured hen what to do to wound.
How fresh is the wound? Usually with a dirty wound, I would say to leave it open, and flush the wound with betadine. Then use plain antibiotic ointment such as bacitracin or neosporin. Vetericyn Wound Spray is good too, but pricey. If you clean it well, you could sew it up, but there can be a chance of infection or abscess. Do you have a local vet who could do it for you? Most wounds like this heal well, but it takes a couple of weeks, and she would need to be separated for a couple of days. Then if a little TShirt or hen aprom/saddle would cover it, you could put her back in the flock. I am a fan of using a dog crate or cage with food and water to keep them with the flock, but protected. Watch out for flies, since they can cause maggot infestation. First thing you should do is to file down those rooster spurs. Let us know how she gets along. Here are similar threads to yours to read:
Edited by Eggcessive - 5/3/16 at 5:48pm