I never suffered dry skin. I think because at the end of every shower (even enforce chemo) I scrub down with baby oil (except the face). When I had no hair I rubbed it into my head too. It might sound strange and greasy, but when you dry off your skin feels so supple and moisturised. I never need to use body creams.
If its like cradle cap, maybe look in the baby aisle at the shops.
Louie