Dark melasma patches around my areolas - how can I get rid of it?

I have dark melasma like patches around my aerolas . It has been for several years and it doesn't look normal . I have never been pregnant so there's no way I can get cholasma(idk the correct name). I feel very insecured and it makes my areolas look huge . I wanna know what that is and also would like to know how to get rid of it because it makes my breast look sooo ugly.