Suggest Treatments For Vitiligo On Mu Lips

Hi i am from bangladesh,Age 26 yrs female I have vitiligo on my lips since 2000 its colouring black then pinkish white.after 2002 it will not increse but rcently 1 yr back my lips are geeting blak then slowly white i take medecinie 2000 after that i cannot use any medicine.What can i do now i am very much tenced about for it.Which treatment is best for my lips please give me advise is laser treatment is effective or not?Like photo therapy.