Hello. Thank you for writing to us Dandruff or seborrheic dermatitis is an important cause of increased hair shedding. Dandruff is more common in those who have oily scalp as a result of sebaceous over activity along with overgrowth of a fungus/ yeast known as malassezia furfur. In my patients I usually suggest a ketoconazole based antidandruff shampoo, every alternate days Or even daily. Ketoconazole is antiseborrheic and antifungal, therefore, is of benefit in mild to moderate seborrheic dermatitis. Nizoral is a ketoconazole based shampoo and is available OTC. It is marketed by Johnson & Johnson. Lather it well on your scalp and allow it to act for 5-7 minutes before rinsing it off. In some cases, dandruff is stubborn and an antidandruff shampoo alone seems insufficient in providing complete relief. In such stubborn cases I usually ask my patients to use a topical potent steroid lotion (e.g either mometasone furoate 0.1% lotion Or clobetasol propionate 0.05% lotion with or withour salicylic acid), twice daily at the scalp skin. Seborrheic dermatitis is a steroid responsive dermatoses and therefore topical steroids bring about rapid improvement, usually within days. Topical steroid lotions are prescription products. With topical steroids remarkable improvement is usually achieved, within 2 -4 weeks. Thereafter they can be discontinued. Since dandruff is bound to recur, therefore, rather than using a regular shampoo, patients who have dandruff may use a regular ketoconazole antidandruff shampoo to keep dandruff under check. You may first try an OTC Ketoconazole based shampoo, and use it every alternate days. It that seems insufficient you may visit a dermatologist in your region for further interventions e.g prescription topical steroids. Hope this information helps Regards