Scalp itching for years. Dermatologists have tried creams, lotions, shampoos etc. Nothing works. When wash head, feels good for a few hours, then dries and about 1 inch in diameter and very dry white spots appear, scaly and very itchy. Latest trip to doc trying Clobetasol Proionate, and zink shampoo. so, I have shaved my hair off. Now we can see the spots. I have tried cortisone creams.