Welcome to BYC. Can you post any pictures of the wound? Was she outside where she may have been attacked by a hawk or other predator? What have you got for wound care? I would flush the wound with chlorhexidene and water, soap and water, or spray with Vetericyn wound spray. Apply some plain antibiotic ointment. Can you identify the crop or where the food is stored in her upper right chest, and tell us if it is damaged, or if the wound is lower than that?