Burp cloths are used to protect the clothes of the person who is holding the baby, as well as to protect the baby's face when leaning against potentially rough fabricBurp cloths are made of a soft material like cotton or muslin. They have a design on one side that is usually used for wiping up spit-up, drool, and other messes. The other side is plain and can be used as a surface to lay the baby down on when changing its diaper.