WhatToExpect.com writes: Cradle cap is fun for no one, least of all your baby. The good news? It won’t hang around forever, and rinsing baby's scalp with a cradle cap shampoo can help ease symptoms. A pesky — but harmless — skin condition, cradle cap, also known as seborrheic dermatitis, usually comes and goes within the first 6 to 12 months of a baby’s life, presenting itself in the form of dry, flaky patches on the scalp. And while some babies may take longer to shake it than others, it will likely be gone by 6 months to a year at most. You can read the complete review here!