hello , i am 32 yrs old and i had been suffering from pigmentation on my fingers ,forehead ,around mouth (lips) and even toe,.my skin type is combination type please suggest me treatment for the same especially for face .my medical parameters are normal.tried all peels and microdermaabrasion but of no use to me,skin is prone to scar formation no scars go off my skin even slightest scrath remains.Please help....