Hi Albert, the vet just recommended to keep her warm and in clean quarantine-style tub/tank for the rest of her life. The paper towels we use are the clean, all-white ones. I already moved her to the spare tub we keep for cases like this, so she has it completely fresh, clean and warm (around 82 degree fahrenheit). I'll try the betadine solution and will wait for the next shed to see if it'll heal on its own. Of course if after shed it'll be still there, or if it will get worse in a few days then we will go to the vet (we need to get our turtle for check anyway, so it will be no problem).