You can undergo virechana karma once in Ayurveda centre or use durdurapatradi taila for head application available at Ayurveda stores.

Thanks for the query. Dandruff is the result of excessive oil application compounded by a fungal overgrowth. So consider discontinuation of oils and start using an antifungal shampoo everyday for first week and then reduce the application to twice a week for maintenance. You should keep the shampoo atleast for 5 minutes on the scalp for it to act. This should solve your problem. However if problem persists, consult a Dermatologist for proper diagnosis and treatment plans. Hope it helps you.