Talk to Dermatologist on Dermatology - Dandruff

For the past Fifteen years, having severe Dandruff, diagnosed as Seborrheic dermatitis. My hair are rough, difficult to manage. can't use mustard oil, because it shines on forehead, and i feel heavy head and sweat a lot. In the past have used, Betnovate lotion daily, Stieprox and Stieproxal shampoos. Currently using Conaz shampoo weekly. Not satisfied, any other treatment to have more manageable and dandruff free scalp and hair. Expecting more answers from Female Dermatologists since they are naturally more into cosmetic/beauty. thanks.