The other day I caught Grandma using Bengay on her lips. She doesn't tell us when is feeling bad or when she needs something like chap stick. I told her that Bengay doesn't go on the lips and she yelled at me and said to put her in a home.She uses the Bengay for her knees. It's getting really frustrating. She started crying and said that she doesn't know why she yelled at me. I gave her a hug and said it's the disease and I hold nothing againest her. So how do I get her to tell me when she isn't feeling good or if she needs some chap stick?