The impact of acne pits is self-evident, so in order to improve the acne pits, the current treatment effect is more ideal is fractional laser. What is a fractional laser? Fractional laser is not a laser, but a working mode of laser, as long as the diameter of the laser beam (spot) is less than 500 μm, and the laser beam is regularly arranged in a dot pattern, then the laser working mode is fractional laser. The ultra-pulsed exfoliative CO2 fractional laser can instantly heat the water in the tissue to more than 100 °C and vaporize the epidermis and different depths of the dermis (scar) when acting on the skin, resulting in vaporization pits in the skin. Due to its high peak energy, small thermogenic side-damage zone, precise vaporization of tissues, light damage to surrounding tissues, and healing of laser wounds in 3 to 5 days, as well as less possibility of complications such as hyperpigmentation or hypopigmentation, it improves the shortcomings of the non-fractional mode of laser with large adverse reactions (scarring, erythema, long recovery time, etc.) and inconspicuous efficacy, presenting a better treatment effect. So why should I choose to do fractional laser? And how to care for it after treatment? 1.What is the treatment principle of fractional laser? The fractional laser is more powerful than the traditional laser, and can reach the deep dermal layer of the human face skin, stimulating the repair and proliferation of the damaged part of the dermal tissue, so that the dermis produces more collagen and rearranges, fractional laser is to divide each pulse of laser into nearly a hundred micro-laser pulses, each micro-laser spot is only 75 to 100um, when these tiny laser beams act on the skin surface, will stimulate the subcutaneous When these tiny laser beams act on the skin surface, they will stimulate the growth of collagen and elastic fibers in the dermal tissue, thus filling in the pits, tightening the skin and eliminating the acne scars. 2. Is fractional laser effective in treating acne scars and pits? The effect of fractional laser treatment for acne pits is very obvious, and there will be some degree of improvement with each treatment. As the number of treatments increases, the effect will gradually accumulate. 3. How many treatments are usually needed? Depending on the severity of acne scars and pits, the number of treatments varies, generally 3 to 5 times for a course of treatment. The interval between treatments should be 1 month. 4.Do I need to rest after fractional laser treatment? In order to achieve the treatment effect and prevent infection, the local area will be red, swollen and bleeding after fractional laser treatment. 5-7 days are required to keep the local area dry and not to get wet. 5.Is fractional laser treatment painful? Before fractional laser treatment, topical local anesthetic should be used, and treatment will start after 40 minutes. There is basically no pain during the treatment, but there is a local burning sensation after treatment, which will improve after cold compress. 6.What are the side effects of fractional laser treatment? Fractional laser treatment basically has no side effects, mainly the problem of local discoloration, as long as early don’t infect, after appropriate attention to sun protection, basically will not appear discoloration. 7.Does fractional laser treatment make the skin thinner? Fractional laser will stimulate the growth of collagen and elastic fibers in the subcutaneous dermis, so the skin will not become thinner but thicker, making the skin more elastic and less sensitive. 8.After fractional laser treatment of acne scars and pits, will the condition recur? No, as long as the acne does not continue to recur, the effect will be maintained. 9.Can I do fractional laser when I am having acne? No, you need to wait until the local inflammation is under control before doing it. 10.How long can I wear makeup after fractional laser treatment? Generally, you can put on makeup after the scabs fall in 5 to 7 days.