How can I get rid of pigmentation around lip area? (Photo)

since I started waxing&threading my upper lip it's darkened while developing into a shadow"moustache"can't go out without covering with tons of concealers.Last year I visited a clinic,they suggested microdermabrasion+using a lightening cream but that didnt help it looks even darker,I've been wearing 40Spf to protect from further damage.I've booked a consultation with a clinic&I've read on their website&everywhere else intense pulse light or fraxel laser might clear it up. will that work? Thanks