I am sorry that u have been suffering from an ailment which can be cured easily, but it does not have a known cure in Allopathy. Dandruff has a cure in Ayurveda.
I am an MBBS doctor abd have started practicing alternate medicines in past 10 yrs. I formulated a shampoo for myself (cos i suffered from dandruff badly), and shared it with friends and the shampoo has been tested succesfully by more than 4000 users.