You should probably take her out of her enclosure ASAP. Keep her in a smaller tank to quarantine her for a while. Line the bottom of the tank with paper towels. The tupperware container idea is great. Keep the humidity box in the quarantine tank. Change the paper towels and whatever you decide to keep in the tupperware container on a daily basis. Keep a very close eye on her while shes in there. You should try and remove reptiles from their normal enclosures as soon as you notice an injury like this. Something in her habitat could be adding to the problem. It also helps to narrow down the source of the problem