Keep her separated until it all scabs over and if you feel it is safe with your flock, stick a saddle on her and send her out That's what I did but I no longer have a rooster.
I had two REALLY bad wounds just a little while ago and I learned that chickens are tough!! Don't sew her up and don't use peroxide. Use a bit of iodine to disinfect the wounds but don't do it for too long because it dries them out. If you feel it needs to be cleaned, mix the iodine with...