For cleaning the wound (and in the future, should the need arise again) use a saline solution or, in a pinch, just plain clean water, is best. If seeing a vet is not realistic, I would go to the drug store and get a syringe and use that to flush the wound. Keep her in a warm, comfortable place. If antibiotics are an option, I would start her on a round. As long as she is eating and drinking, don't give up hope. I've had a hen fight off an bad infection from a bobcat bite by keeping the wound clean, using topical antibiotic ointment, and giving her supportive care.