Don't use anymore peroxide, it will damage the tissue. If you must clean it again, use a Iodine solution. Put her in a clean place by herself so she can heal. The area will scab over eventhough she has scraped the hide off. If you can get a can of Blu-Kote, spray the area REALLY good with that. Keep her space clean and dry and just leave her to heal. It shouldn't take more than 3-4 days for her to scab over and then she should be fine.