“I have a highly visible, unsightly stain on my beautiful marble floor. I have tried everything! What do I do?” This was a recent frantic call from an exasperated customer. The accompanying picture shows the stain. In such a situation there is a simple and inexpensive solution that works almost all the time. It is called a poultice. Derived from the Latin word “porridge” a poultice is a liquid chemical mixed with a white absorbent material to form a paste. To address the problem the poultice should be spread over the stained area to a thickness of 1/4″ to 1/2″ with a spatula, covered with plastic and left to dwell for 24 to 48 hours. The liquid cleaner draws out the stain into the absorbent material. One important note is that identifying the type of stain is critical because it determines the ingredients of the poultice.