Help dog attack - Page 3
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I've treated wounds like this before. Firstly, get saline solution, wash out the wound, use a syringe without the needle to squirt water into the wound.
Once clean, do not stitch it up - or you will lock in bacteria.
Antibiotics are really good if you can get them from your vet as they will stop infection - dog / fox teeth can infect a wound.
Metacam (it has this name in the UK) is a pain killer that can also be used to deal with the shock, again from your vet.
Leave the wound open, cut away feathers near it and leave alone.
Wash two / three times per day with saline solution (you can buy bags of this from your vet). The idea is to keep the wound clean but also to keep it moist to allow it to ooze / get rid of bacteria and promote regrowth from underneath, therefore pushing the infection out.
Eventually, the skin re-grows.