The basics of wound care are important to remember.
1. Flush every morning with saline solution or warm soapy water. This is to remove bacteria that has attached to the wound from the air each day. (Avoid hydrogen peroxide as it kills new skin cells that are trying to grow.)
2. Keep the wound moist with the antimicrobial ointment you have. But don't let the wound get wet from water sources other than what you use to clean it each day.
3. If there are any loose flaps of skin, do not cut them off. Use them to lay over the open wounds where you are able. Use your wound ointment to "glue" them in place then smooth the ointment over the top. Do you understand the concept of skin grafts? That's what this is and it helps heal open wounds three times faster.
4. As others have pointed out, she may appear to be "eating" her wounds, but she's really just pecking at them because they hurt. Humans do the same thing when they grab a sore thumb they just hit with a hammer. Give her a chewable aspirin, one in the morning, and a second one late in the day. This will reduce her pain.
5. An oral antibiotic is necessary to keep bacteria from moving into her bloodstream and killing her. Ask the vet to phone a prescription to your pharmacy. Be sure it has refills if needed.