Hi, Thanks for writing to us. In your case severe dandruff could have led to hair fall. Another cause could definitely be male pattern baldness. So the treatment should be somrthing that clears off dandruff and helps regrow hair Use a ketoconazole tar based( like protar k) or ketoconazole salicylic acid based shampoo every alternate day till dandruff clears off. Use a mild steroid lotion( beclomethasone lotion ) in night over scalp. Once dandruff is controlled, continue with shampoo once in a week and stop the steroid lotion. Instead start using minoxidil 5 percent solution twice in a day. With regular use of say three to four months, response can be seen. If the hair fall is extensive other options like scalp mesotherapy can be tried. Hope that helped