I often hear patients talk about “fractional laser” and they ask if our unit has “fractional laser”. When I asked her what she wanted to do, she said she wanted to do acne on her face! In fact, the exact treatment for acne is photons, which are commonly used in clinical practice as intense pulsed light. To treat the scar left behind by acne, we can instead choose fractional laser. Here is a brief overview of the general knowledge in this area. 1. What is fractional laser? Why can it be used to treat acne scars? What kind of fractional laser is it? In the eyes of many patients it is so “high class”, there are many things that are so popular, in fact, with the deliberate publicity of the beauty institutions are inseparable. “Fractional laser is not that mysterious. I believe we have all seen barbed wire, there are a lot of nodes and mesh, fractional laser emitted light is arranged in the way the nodes, the parts of the mesh is no laser beam. That’s why you often see scabs on fractional laser skin that are arranged like a mesh. The difference between fractional laser and conventional lasers is that it does not work on the whole skin, but only on the skin at certain intervals, which is faster to repair and can achieve the same healing effect. Fractional lasers are mainly used to treat acne scars. There are two main types of lasers, the fractional CO2 laser and the fractional bait laser. Because they can act on the skin and even collagen fibers, they can make the collagen fibers rearrange so as to achieve the purpose of treating acne scars. 2.What skin conditions can be treated by fractional laser? In the field of cosmetic dermatology fractional lasers can be used to treat acne scars, but also enlarged pores, fine lines on the face, cosmetic skin resurfacing, etc. 3.What is the process of fractional laser treatment for acne scarring? In fact, the laser treatment process is not too complicated. Depending on the severity of the facial acne, the doctor will set the energy and other parameters, and then give you one to multiple shots of the lesion, with a slight pain, which is generally tolerable. 4.What are the precautions to be taken after fractional laser treatment for acne scarring? After receiving fractional laser treatment, acne scar patients will use slight redness and other discomfort on the skin after about half an hour to 50 minutes of cold compresses. After surgery, you can apply topical erythromycin eye ointment, which can be applied because the skin is dry after laser surgery, and a post-laser matching mask to promote skin repair, as well as topical factors or gels to promote epidermal growth. Usually, the patient’s scabs will fall off in 5-6 days. 5. What is the effect of fractional laser acne scarring? Here we must first understand one thing, before fractional laser treats acne scarring make sure that acne should be under control. If your face is still growing acne, we do not recommend you to use fractional laser to treat acne scarring. If your acne scars are superficial, either fractional CO2 laser or fractional bait laser can achieve more significant improvement. If your acne scars are very deep, then it is recommended that you choose fractional CO2 laser to treat them and you may achieve better results. Another point to note is that the treatment time span for acne scarring is very long, more severe acne scarring may take about 2 years, so think carefully before doing this treatment.