DD has horrendous cradle cap, it is thick and covers all the top and front of her head. It is in her eyebrows too. HV said to "use olive oil" but ?. How ? I have been putting olive oil on it but presumably that's not enough, it's not going anywhere. Do I pick it off bit by bit? Do I rinse it off, if so with what? It is just getting worse and worse. I have cradle cap shampoo, but cannot see how shampoo is going to move the thick crust. Please help me.