I am having dandruff problem since last 5-6 years,Now white scalps are coming with itching. 6months back I did a checkup with Dermatologist and he prescribed me Hyporal 200 (10 tablets) , VB7 forte (10 tablets) and Nizoral shampoo, After using that the dandruff , scalps and itching problem gone for 1 month now the same problem back again,Please suggest what to do??