How Can Cradle Cap Be Prevented?
In most cases, frequent shampooing with a mild baby shampoo can prevent cradle cap from coming back once it has cleared up. A stronger medicated shampoo may be needed in some cases, but seek the advice of your doctor regarding the use of these shampoos. Most children outgrow cradle cap by the time they are 6 months old.
Source: http://www.webmd.com