Up to a third of babies and toddlers in nappies have nappy rash at any one time. It doesn't usually develop in newborns, but all babies can get nappy rash.
Nappy rash can be caused by:
If the rash doesn't go away or your baby develops a persistent bright red, moist rash with white or red pimples that spreads into the folds of their skin, they may have an infection.
Ask your pharmacist or health visitor for advice. The pharmacist may recommend a cream for you to use.
If the rash is severe, take your baby to the GP who may prescribe cream or medicine. Follow your GP's instructions on whether and when to apply barrier cream as well as the prescribed cream.