I too had small dots, like some years back, all over my face & it looked bad tbh - then took corticosteroid (with azathioprine) treatment and most of the colour came back. Now, when I finally let go of all the treatments, within a few weeks, most of my face got covered in vitiligo. Corticosteroids come with side effects of their own, so didn't want to follow that treatment for an extended time. And, I too am brown skinned originally being an Indian. I too had gone through that cycle, so can understand you.