Just discovered one of my mature laying hens have damaged wattle, comb, head and back above tail feathers. Bloody. Looks like rooster might have done damage. She will not come out of hen house. Have separated rooster. What kind of first aid can I give her? 1) Her feathers around neck are bloody, can they be cleaned or is it necessary? 2) Can a simple antibiotic be applied to the back of the head where she can't reach to peck? What can I do for her???? She is scared and does not look good. This is a first for me.