Cradle cap is the name given to flaky, yellowish patches of skin which occur on a babies scalp usually within the first three months of their lives. The cause is not fully understood but it usually clears by the time a child reaches two to three years of age. It may last just a few weeks or even a few months. It does not generally cause any discomfort for the baby. It can be a little distressing for parents though as it can be quite prominent visually and you feel you want to do something to help.