I have severe dandruff with big flakes.

I have dandruff since i was 14 yrs old ... it slowly became too difficult to control .. i have trued scalp lotion .. then ketoconazole shampoo.. 8x shampoo made my hair fall like rain ... then i used matrix antidandruff shampoo It got controlled for a month But did not go off completely Then it got increased to bug flakes And i used terbinafine lotion at night Flufung tablet 150mg one a week And morning i used coal tar shampoo For a month But the flakes increased in size And no cure Not even reduction Are there any other treatments left I want to marry next year I get really painful pimples because of dandruff And i have so many acne scars too Is there any permanent solution for dandruff Even if its expensive i want to try Kindly give me other options. It would be better if it would be fast acting treatment Because I can't be compliant with my medications because of my busy schedule. Mainly dandruff is my problem and the itching