Recently, many female friends around us have started to frequent the cosmetic dermatology departments of hospitals for laser cosmetic treatment, and they have heard that winter is the most suitable time for laser cosmetic treatment. The principle of laser cosmetology is selective photothermal effect, therefore, as far as laser treatment is concerned, whether it is pigmented lesions or vascular lesions, invasive or non-invasive treatment, it is a kind of stimulation to the skin, which will produce different degrees of inflammatory reaction, and then inevitably produce post-inflammatory pigmentation, and ultraviolet rays are precisely the culprit that aggravates post-inflammatory pigmentation. In winter, ultraviolet rays are the weakest and have the least effect on the production of hyperpigmentation, so the patient’s recovery will be faster, the course of treatment will be shortened accordingly, and the therapeutic effect will be better. Furthermore, laser treatment with invasive surface, such as large area of nevus of Ota, due to the larger invasive surface, the chance of bacterial infection is also greater, and the low temperature in winter, the patient sweats less, bathing less, which reduces the chance of contact between the invasive surface and water, which not only reduces the chance of infection, but also brings convenience to the patient’s daily life after the operation. Therefore, this season is the most suitable for laser cosmetic surgery. Pre-operative consultation is especially critical Laser can produce high energy, focused and precise monochromatic light, with a certain degree of penetration, when acting on human tissues can selectively produce high heat in the local skin. Laser cosmetology is to make use of this feature of laser to remove or destroy the target target tissues to achieve the purpose of cosmetic treatment. At present, laser cosmetic treatment in the clinic has achieved amazing results, so many patients choose to do laser cosmetic treatment in this season. However, Dr. Luan also reminded those who are considering laser cosmetic patients, laser cosmetic treatment is not suitable for all facial skin diseases, patients should go to a regular hospital, clear facial disorders, according to which the development of appropriate personalized treatment plan, choose the appropriate laser treatment instrument, in order to achieve twice the result with half the effort, safe and effective cosmetic purposes. Four areas suitable for laser treatment At present, laser beauty should mainly be transported to remove spots, wrinkle removal and grinding, hair removal, skin rejuvenation in four areas. 1.Dispelling spots The spots and rashes mentioned here include pigmented and vascular lesions, which are suitable for laser treatment: freckles, nevi, zygomatic nevus, liver spots, nevus of Ota, senile spots, sun spots, light coffee spots, tattoos, and eyebrow tattoos. These lesions can be removed by laser, and the number of treatments depends on the type of disease, pigment, depth of blood vessels and other factors. For example, nevus of ota pigmentation is present in the dermis, and some patients may take a year or two to treat, so patience is essential for the treatment, which is a cumbersome and costly one. Basically, it can be cured, just the length of time. 2.Wrinkle Removal Grinding Grinding mostly uses carbon dioxide lasers and is suitable for removing scars, as well as dents left by acne. Laser treatment can smooth out fine lines and scars, making the skin or scars smoother and rejuvenated; fractional wrinkle removal is also a milestone in the development of laser cosmetic medicine in recent years, bringing new surprises to the removal of wrinkles. 3, hair removal Women’s mouth more conspicuous sweat hair, armpit hair, leg hair, are suitable for laser removal. The principle is that the melanin pigment in the hair follicle absorbs the laser energy and destroys the hair follicle through the resulting heat exchange. The laser energy can follow the hair shaft inside the hair follicle and the follicle is destroyed by the energy and the hair stops growing. Hair removal is also treated in stages according to the growth cycle of the hair follicle. 4, skin rejuvenation Photorejuvenation is becoming more and more popular nowadays, is the use of a strong light source to improve the photoaging skin. True photorejuvenation does not just improve wrinkles, but improves all photoaging phenomena including skin texture, irregular discoloration and capillary dilatation, thus there are basically no side effects, and patients don’t even need to stop working, and they can return to normal activities immediately after the procedure. Post-operative care is particularly important Laser cosmetic treatment has the advantages of selective treatment, no scarring, less pain, faster recovery and less impact on normal work than traditional cosmetic methods. However, although winter is a suitable season for laser cosmetic treatment, it is still important not to neglect the pre-operative preparation and post-operative care, especially the moisturizing of dry skin. In addition, for the scabs formed on the traumatic surface after invasive treatment, do not peel them off prematurely on your own to avoid scarring and excessive color deposition. He also places special emphasis on sun protection after the procedure. Ultraviolet rays are the pushers of increased hyperpigmentation after laser cosmetic surgery, so postoperative patients should use some sunscreen skincare products under the guidance of the doctor, and can take vitamin and antibiotic drugs appropriately, which can prevent the occurrence of postoperative side effects. Finally, it is especially pointed out that for women who are pregnant, it is not suitable to do laser treatment.