At first visit, patients will be randomized to receive 0.1% tacrolimus ointment for apply to vitiligo lesion on one side of the body. The lesion on the other side of the body will be treated with 0.1% mometasone furoate cream. Patients are instructed to apply 0.1% tacrolimus ointment and 0.1% mometasone furoate cream twice a day for 6 months