I am of an Indian background (dark brown skin), and was advised to get Picosure done for my darkened area around my mouth and chin and forehead - which I did. I have had 2 treatments so far, but no results. the only thing has has happened is that my skin is slightly faking off. Is that a good thing? How do you know PicoSure is working (without seeing a lighter colour appear)? Also, can Picosure be used to lighten your skin colour on your face overall?