Hello there..... For these scars you can use cocoa butter or vitamin E creams. Topical treatments with acids and chemical peels can be effective but can take a while for the skin to totally revert to its normal color.  Microdermabrasion can also be done, but this might require several sessions.  Skin resurfacing using lasers is also an option.  .... Consult your Dermatologist , they will do the needful.....