Based on content from the baby care experts at JOHNSON AND JOHNSON’S® Baby Care Basics: The Essential Guide for New Parents.
Nappy rash begins when trapped moisture and friction begin to irritate the skin. The irritation continues over time, and the harsh urine and stools inside a soiled nappy can make the situation worse. Some babies can also develop a nappy rash when they are sick or teething. Nappy rash is not only uncomfortable for the baby, but if it is left untreated, or doesn't resolve itself, it can even lead to infection.
Diarrhoea, which can be caused by illness, changes in your baby's diet or use of prescription antibiotics, can also lead to nappy rash. When your baby's stools are loose, change nappies more frequently.
