p.s. Also,many of the well-known `anti-dandruff` shampoos `work` because they contain Sulphur which strips a layer of skin from the scalp.....Nizoral is an anti-fungal treatment and very effective.....for anyone suffering from scaly/itchy `blotches` [ more like dermatitis ] coal tar-based shampoos are highly effective/soothing.......Neutragena T-gel being one of the best-known ones. http://www.medicinenet.com/coal_tar_sham...rticle.htm