J.L.
my pediatrician said just to use warm water on a wash cloth and soak it everyday.....that DID NOT work for my sons cradle cap. What did work was letting his head be under water in the bath for awhile and when he got out I rubbed baby oil into his scalp and used a small baby comb and gently rubbed back and forth and side to side to exfoliate the dead skin. Leave the baby oil on her head for the day so don't put too much on to begin with. I did this daily for a week or longer til it all seemed gone. It hasn't really come back, the first sight of it I just repeat once and it's gone.
We also use a humidifier now since the dry heat in the house seems to give us all a sore throat. Maybe that has helped too. Good luck.