Hello, Dandruff may be caused dry skin, sensitivity to hair products; and skin conditions such as seborrheic dermatitis or eczema. The overgrowth of a yeast-like fungus can also cause dandruff. This overgrowth can be caused by stress, hormones, too much oil on the scalp, or problems with the immune system. Frequent shampooing removes flakes, reduces oiliness, and prevents dead skin cell buildup. If this fails to help, special antidandruff shampoos are usually helpful. When selecting an over-the-counter shampoo, look for antidandruff ingredients such as ketoconazole, selenium sulfide, salicylic acid, sulfur, coal tar, or zinc pyrithione. You may need to try a few products before you find the one that works for you. Oral antifungal medication may be less use. Please consult your Dermatologist, he will examine and treat you accordingly. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Penchila Prasad Kandikattu