Hello doctor,I have vitiligo on my left cheek. From one year I am using dicaris 150mg melanocyl 10 mg tablets.from one year I am using them continuously and 80 percent is cured but the remaining 20 is like that only there is a slight change from 4 months. How many months can I use this tablets? are there any side effects using this tablets for years? Can I go for laser treatment?please suggest me