No when the damage is done it's done, you can only do better to prevent worse, but it will never disappear. It's damage from 6 mnth till 4,5. He's over 5 now. He's totally hydrated, happy and healthy now. Deeper water scares him, so this is the limit.Greetings. I think given the original bad conditions & dryness, that you could soak in deeper water. It can only help!