I never had problems with cradle cap with my first baby. Then I had Lily, and she had THE WORST cradle cap issues I have ever seen. Seriously I was embarrased and I totally felt bad (but it was nice that she could wear huge headbands that covered it up most of the time). :)
So my doctor tells me, "oh yeah, the best thing for that is just some Head and Shoulders." Hello, DERR! Why didn't I think of that?! It totally makes sense. AND. It totally works. This stuff got rid of my baby's cradle cap in one week.