Hello, my father is close to dying (he's at home and a hospice is helping us). We are trying to make him as comfortable as possible. He has not eaten or drank liquids (he can't swallow; we have to thicken it to give it to him) in a few days. We are trying to treat him symptomatically. I just looked at his tongue and it looked like a piece of 1 sq in of paper was on his tongue. When I looked closely, it was his tongue surface was peeling (papillae). What can I do? Should I moisten the tissue or put a cream on it (e.g. glycerin or vaseline)? Thank you.