Rubbing hands together under running water is the most important part of washing away infectious germs. Pre-moistened towelettes or wipes and waterless hand cleaners should not be used as a substitute for washing hands with soap and running water. Towelettes should only be used to remove residue, such as food, off a baby's face or feces from a baby's bottom during diaper changing. When running water is unavailable, such as during an outing, towelettes or waterless hand cleaners may be used as a temporary measure until hands can be washed under running water. A childcare.