My Sullies plastron is peeling severely. I got her as a rescue a few months ago, her plastron at that time was in horrible condition-scratched, gouged, peeling chipped and broken. She has been raised outside she whole life. Her peeling has gotten worse. Her substrate all over her pen ranges from Cypress Mulch, soil, Bermuda grass, and cement. There is no drainage or odor. What do I do to care for this? I am worried she will hook a peeljng scute and rip off one whole section.. Thank you guys!