A.  Pigmentation is the end result of a number of disorders. The outcome of any treatment will depend upon the cause. It is like saying I have fever give me a medicine. You may take Crocin and fever will come down for some time and come back again. If this fever was, from let us say tuberculosis, no matter what you do, fever will not go unless you treat tuberculosis. The same applies for hyperpigmentation. Therefore, I suggest you first go and see a good Dermatologist who makes a proper assessment of your problem.