Is there a permanent cure for dandruff. I have white patches on face and white small lumps on the scalp. Not itchy. Previous visit to doctor said its severe dandruff and not a concern. So he prescribed triben ad. I used to get dandruff every third day and next day after applying oil. Any shampoo and is there a permanent cure and tell me how many times and best schedule wash times, shampooing per week and brushing and oiling.