S.M.
I also have a 3 month old (girl) and we recently fought the cradle cap battle...successfully by using the toothbrush the hospital sent with us home to brush the hair with. I used it pretty aggressively to scrape the cradle cap off, then washed her in the tub, using J&J Head to Toe generously on the head, rinsing really, really good & then applying baby oil on the area. I did this for 3 days & it was gone!