One thing I learned from somebody to get rid of dandruff and other dry skin problems is to firmly rub that area of the body with your fingertips as if you were massaging it or lathering your hair with shampoo. For example, I have a thick goatee beard and it can easily have dandruff in it, but if I take a minute in the shower to massage my chin where the beard is, it has no dry skin whatsoever. Same with my eyebrows, and behind my ears (Yeah, dry skin plagues me).
I also started trying this with my feet to good success.....so much less scaling/itching that it actually seems like my feet are healing completely.