Thanks for the info but what antibiotic? Just in case?We recently treated 2 hens for this... both were bathed (in kitchen sink) with warm, soapy water to flush out the wound and then rinsed with warm water, feathers around the edges were cut off at their base if they laid into the wound and potentially would cause 'pulling' on it. We put Neosporin around the edges (without the analgesic, which is dangerous to chickens) and sprayed the wound with Blu-kot and kept them in the 'hospital ward' with one other friend from the coop until the wound was scabbed over and beginning to heal, then they went back out to the coop with a hen apron on to provide protection until it finished healing.
We reapplied the Neosporin and blu-kot as needed, but usually only takes a few days to notice a real difference....
Neither hen showed signs of infection around the wound so no further antibiotics were used. Both fully recovered and are laying and behaving normally...