In 1988 a colleague and I conducted a small research study on the use of glycerin and lemon mouthsticks. These were used for poorly and dying people. We noticed that these people were developing sores and blisters on the lips and mucosa in the mouth. The glyerin part gave the appearance of a moistened mouth, but lips were just made greasy. Like a sweety whose catch phrase was 'made to make your mouth water' the lemon part certainly did this, to the point that the salivary glands were exhausted. They were 'banned' at our local hospital and mouthcare practice changed to water/fresh pineapple juice applied with a baby soft toothbrush and lip salve for the lips. Working in education and development I spied a box in a retirement home, being ordered and used for a resident at the end of life. I was called to look at her very saw mouth, lo and behold....why are these things back!!!