Give it the ol' damp towel trick and see how he does. Unless his skin is wrinkly-loose or his eyes are dented, I'd skip the Pedialyte for now and see how he does with an enclosure with increased humidity for the next week or two first. If he doesn't need the Pedialyte, you can throw his electrolytes out of balance. Damien's suggestion of a humid hide is a good idea, too. Good luck with him, and definitely keep us updated on progress.