My son is also about 10 weeks old and started to get cradle cap. I saw on a baby channel in the hospital that you should use baby oil and leave it in for about 10 minutes. Then with a new toothbrush or a soft bristled brush use short strokes and eventually you will start to see the flakes come out.
Don't expect it all to come out in one try or else you might hurt your baby. Try doing it once or twice a day, in the a.m. and in the p.m. until you see it disappear.
Keep doing this once a week if you see you child is prone to cradle cap to stay on top of it before it gets too bad!
Works like a charm for me!
