Well I want to say its ok for babies to have cradle cap but when it involves any of these ,hair loss, itching and redness then its a little more serious.But you can take off the scales by softly massaging the scalp with your hand or wash cloth, most times cradle cap develops because of high secretion of sebum(oil) in babies which can cause fungus growth and this can be treated by using doctor prescribed medicated baby shampoos maybe twice a week to wash the baby's hair and head but if scales are tough to be removed then a little amount of mineral oil can be used to soak the scales for few mins for easy removal but don't use olive oil as it may make the condition worse due to the presence of oleic acid in it which may not be healthy for the baby.