I had a bad night last July due to a neighbor's dog, lost 25 chickens. I nursed 3 back to complete health, two of which had horrible injuries. I isolated them in wire cages. Twice a day cleansed wounds with Chlorhexidine soap and rinse ($4 for 8 oz bottles from my vet), f/b Triple A ointment (bought 10 tubes cheap - Walmart) and Swat ointment to deter flies (Tractor Supply). Once a day x 3 days Penicillin inj (Tractor Supply) alternating breast sides, 0.1 cc to the largest hen. I'm in Lower Alabama so I kept a fan on low 24/7. Once the open access wounds were closed, and I was conservative there, I Blu Koted the feather-less sites well and returned them to the flock. Only lost a neurologically damaged SS cockerel, saved 3 pullets, cried every morning at 3:00 as I went thru my routine before work . . .