Treatment options include protection from the sun, cryotherapy, dermabrasion or microdermabrasion, tretinoin cream or pinch
grafts of normal pigmented
skin. I suggest you to get an evaluation done from a dermatologist to confirm the diagnosis.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps.