Cradle cap is a completely normal condition that most babies get in their first few months of life. It looks yellow or brown, greasy, and scaly. It usually goes away on its own, but you can help it along by gently brushing and scrubbing your baby’s scalp. You can also use baby oil or vegetable oil to soften the scales, making it easier to brush out. But, make sure to use a gentle shampoo on your baby’s hair because the oil can make the cradle cap worse if left on for too long.