"If your scalp feels itchy and flakes when you rub it, give it a good scrub with a shampoo intended to treat dandruff or excess scalp oil. (These conditions are often one and the same since dandruff can be caused by an oily scalp that sheds skin at an abnormal rate.)
Try John Masters Organics Zinc & Sage Shampoo with Conditioner which contains zinc - a mineral that has been shown to help control dandruff."