http://www.kidshealth.org/kid/health_problems/skin/impetigo.html
This document provides information about impetigo, an infection of the skin caused by bacteria. Impetigo is commonly found on the face, often around the nose and mouth, but it can show up anywhere the skin has been broken. The document, geared toward kids, answers questions about the infection, including what causes impetigo, what will the doctor do, and how to prevent impetigo.