It is still better. The principle of fractional laser is to act on tiny parts of the skin, using the normal skin tissue around the small spots to accelerate the healing of acne scars. The result is that the purpose of treatment is achieved. At the same time, side effects such as postoperative pigmentation caused by erbium laser or CO2 laser abrasion are avoided, achieving the purpose of treating acne scars. The heat energy it generates on the skin will stimulate the regeneration of collagen fibers and thicken the dermis. Medela reminded that there will be some redness and swelling just after the treatment, but it will get better and better later, and the acne marks will become lighter and lighter.