My Mother-in-law has not voluntarily showered or bathed since I have known her (14+ years). She has always sponged bathed herself and had her hair washed and set once a week. Recently she is not interested in even sponge cleaning herself. She has terrible skin flaking, smells and carries staph and really needs to be cleaner. She refuses to have her feet tended to as well and her toe nails are so long is scarey. A real breeding zone for bacteria. Her mind is sharp. Her constitution is strong like bull. What can I do?