1) Fractional CO2 laser for skin re-contouring It may take a couple of sessions, may be 5-6 over a period of few months for a good appreciable result. There is a down time with the procedure and one can experience redness and swelling on the treated area, that will persist for 3-5 days post procedure. You can but it is better not to use any other product but only post procedure creams and sunscreens.