1, laser freckle effect is good?
The changes brought by sunlight to the skin are far more than just tanning! It can also damage collagen and elastic fibers in the skin, resulting in wrinkles, photoaging and even lesions.
A few days ago, Wang Baoxi, chief physician of dermatology department of Plastic Surgery Hospital of China Academy of Medical Sciences, said in the live broadcast of popular science consultation on the client side of People's Good Doctor that we must go to a regular medical beauty institution and do a good job in daily sun protection to fight against skin photoaging and sunburn.
Wang Baoxi said that in addition to sun protection, drug intervention is mainly oral drugs such as vitamin C for symptoms; Fruit acid skin replacement is to remove the aged and rough stratum corneum on the skin surface by external application of high concentration fruit acid; Laser therapy or photon rejuvenation uses lasers to "knock out" spots.
"Laser therapy is a double-edged sword. Laser can not only break pigment particles, remove pigmentation and whiten skin, but also stimulate pigment cells and produce new pigments. " Wang Baoxi emphasized that photon skin rejuvenation therapy should go to regular medical beauty institutions, not ordinary beauty salons, because only doctors know how to choose which type of laser or intense pulsed light, light energy, pulse width and other parameters, and determine the whole course of treatment and treatment frequency according to skin texture and disease nature, so as to remove the focus as much as possible and achieve the purpose of beauty and risk avoidance.
Wang Baoxi further explained: "White people who hit the laser will not be black. Black people will be black if they don't hit the laser. We yellow people have more active skin pigment cells than white people. Improper use of laser will activate pigment cells and cause more pigment spots on the skin, which is counterproductive. "
2. How to repair after laser freckle?
Laser freckle removal is based on the principle of selective photothermal effect. With its powerful instantaneous power, highly concentrated radiation energy, pigment selectivity and extremely short pulse width, laser energy is concentrated on pigment particles, which are directly vaporized and crushed, and then discharged from the body through lymphatic tissue without affecting the surrounding normal tissues.
Laser speckle removal technology can transmit a laser beam with a specific wavelength through epidermis and dermis without damaging normal skin tissue, pigment cells and pigment particles, and the debris is absorbed by macrophages in the body, leaving no scars safely, which fundamentally solves the disadvantages of previous treatment methods. After laser speckle removal and whitening technology, the treatment area should be kept clean, and the wound can be cared with antibiotic ointment, but in principle it is not suitable to be scrubbed with water. It is forbidden to remove scab at an early stage, and it should be allowed to fall off by itself, and at the same time pay attention to sun protection. Sunscreen and vitamin C can also be used to prevent the formation of secondary pigments after scab shedding.
What should I do after laser freckle removal? In principle, do not scrub the treatment site with water within one week after laser treatment. Be sure to keep the wound clean and use some lubricating drugs. It is forbidden to remove scabs early, but to let them fall off on their own. If there is pain in the treatment area, you can take painkillers under the guidance of a doctor. All doctors emphasize that the most important care after laser beauty is to use sunscreen to avoid sun exposure.
After laser cosmetic treatment, some patients' local skin color may be redder, but with the passage of time, the above phenomenon will gradually fade. Depending on the individual's situation, this process will last for different times. Some patients will have swelling and a small amount of exudate in the treatment area and surrounding tissues after receiving laser freckle treatment, which can make them feel swollen and numb.