Vitiligo is curable?

No known cure: There is no known way to prevent or cure vitiligo. However, several methods, including cosmetics, re-pigmentation using uv light therapy, corticosteroid creams, depigmentation of unaffected skin areas, and skin grafting, can be used to improve the appearance of skin severely affected by vitiligo.

No: Some studies showed that uvb-nb phototherapy may restore the pigments but we don't know how long this restoration will last . Even more important, it is the cause for the vitiligo which determines whether it will get worse. Note that vitiligo may well be a manifestation of an autoimmune disease.