C.D.
OK, there is a foam shampoo for new borns that I LOVED! It smelled SO GOOD and lasted for 5 months. His cradle cap went away quickly, but I loved the smell of it so much that I continued using it. Here is a link:
http://www.toysrus.com/product/index.jsp?productId=2403861
I would put it in and comb it through...or you can "scrub" it in with the brush and rinse.
Good luck!