Effectiveness of subcision using carboxytherapy plus fractional carbon dioxide laser resurfacing in the treatment of atrophic acne scars: comparative split face study.

Fractional carbon dioxide laser resurfacing is the gold standard treatment for atrophic acne scars but when combined with subcision to the depressed scars it provides rapid improvement. Carboxytherapy is considered a tool for subcision via injecting the gas under pressure plus its well-known effect in rejuvenating scars. Main objective of the work is to evaluate the effectiveness of combined subcision using carboxytherapy plus fractional carbon dioxide laser resurfacing in the treatment of atrophic acne scars.