Comparing the Efficacy and Safety of Fractional Picosecond Laser and Gold Microneedle in the Treatment of Acne Scars

The goal of this clinical trial is to compare a 755nm honeycomb picosecond laser versus a CO2 fractional laser for the treatment of atrophic acne Efficacy and safety of scarring. The main questions it aims to answer are: Effectiveness of 755nm Honeycomb Picosecond Laser and CO2 Fractional Laser in the Treatment of Atrophic Acne Scars Effectiveness of scarring Participants will: the control group(receiving 10600nm CO₂ fractional laser\[AFL\]treatment)and the experimental group(receiving picosecond laser with honeycomb focusing lens array\[P-DLA\]treatment).Facial images were captured using the VISIA skin imaging system,and the red zone,UV spot,and brown spot scores were evaluated for all subjects before each treatment,and at 1 and 3 months post-treatment.