"Nevus" is called nevus cell or melanocyte nevus in medicine, which is a skin manifestation caused by the increase of melanocytes in epidermis and dermis. If it is papule or nipple-like appearance or pedicled skin, it is clinically called intradermal nevus; Slightly higher than the leather surface is mostly mixed mole; Not higher than the skin surface is the borderline nevus.
As we all know, "mole" is a benign tumor, which generally does not affect health. For intradermal nevus and mixed mole above the skin surface, laser or cryotherapy can be used for cosmetic treatment, and satisfactory results can be obtained. However, due to individual differences, some patients may leave slight scars after treatment; Even some people with specific constitutions will have keloids and need to be reminded.
Sometimes it is not easy to remove the borderline nevus by laser or freezing, and there are cases of recurrence. It should be noted that pigmented nevus growing in the palm, lips and vulva are mostly borderline nevus, which may cause cancer if rubbed and pressed frequently. Therefore, the borderline nevus growing in these parts should be completely removed by surgery to avoid leaving future troubles, while borderline nevus growing in the face or other non-friction parts generally do not need to be harassed by radical methods, such as laser, freezing and drug corrosion. Because repeated and improper stimulation is also necessary.
If you want to remove it with a laser, I can give you some advice:
Application of laser:
1, the most common tattoos and tattoos
Tattoo: Pigment is artificially implanted into the dermis, or pencil lead and iron powder enter the dermis due to accidental injury. Generally, only a few laser treatments are needed to solve the problem.
3045 Q-switched dual-wavelength medical laser beauty instrument outputs 1064 nm and 532 nm, and 1064nm Q-switched laser has strong penetration and can reach melanocytes or black-blue dye particles in deep skin. Q-switched laser at 532 nm can be well absorbed by black-red pigment and can effectively remove black-red pigment. So as to completely remove the pigment.
2. Laser therapy
The principle of laser therapy is that laser instruments produce high-intensity beams, and different types of lasers can produce different colors of light. The naked eye color of laser is the key to treatment. Different colors of laser are absorbed by different colors of skin, and dye particles are decomposed and vaporized by laser energy, sealing blood vessels, and then the dye particles are absorbed by the body and excreted, and the pigment disappears.
Because the laser of a certain wavelength is only absorbed by the pigment of the corresponding color. Only diseased cells can absorb specific laser, while normal skin tissue will not be damaged, so it will not leave scars. Advanced laser technology can also control the depth of laser reaching the skin, and adjustable pulse can minimize skin damage. Generally, the skin can return to normal within 7 days to 10 day, without affecting people's normal life. During the operation, the treatment time is only a few minutes at a time, and at most it is ten minutes. After each treatment, the skin goes through a metabolic process of natural absorption, so the treatment interval is generally 2 ~ 3 months. According to the size, quantity and depth of pigment and vascular diseases, some treatments can achieve the expected effect once or twice, and generally it takes 4 to 6 times to completely solve the problem.
3. Characteristics of laser cosmetic treatment
1) does not damage skin and hair follicles, does not generate scars, and only removes pigments.
2) Pigments that cannot be removed by drugs and other methods can be removed.
3) The pain is small and no anesthesia is needed.
4) Fast recovery and little influence on normal work.
5) cold light sterilization, no cross infection, no special care after operation.
4. Preparation before laser treatment
1) There should be no inflammation in the treatment area.
2) Laser treatment is prohibited during menstruation and pregnancy.
3) Clean the treatment area, do deep cleaning if necessary, and then disinfect the treatment area.
4) Sensitive parts such as eyeliner, apply anesthetic to lips for 20 minutes before treatment. Shave and disinfect the affected area with hair.
5) Patients should take photos before laser treatment to compare the effect after laser treatment.
5. Time and interval of laser treatment:
After laser treatment, the time for pigment particles to fade and discharge is generally about 3-6 months. Due to the differences in size, type, depth and color of pigment particles, skin color, metabolic ability and age, the time and degree of pigment particles fading and discharging after laser treatment are also different. The lighter the lesion, the younger the age, and the earlier the treatment, the better the effect. Generally speaking, superficial pigmented diseases such as freckles and sunburn need 1-2 times, wrong eyebrow tattoos need 3-4 times and amateur tattoos need 4-6 times. Professional tattoos need 8- 10 times, and deep pigmented diseases such as nevus of OTA need 5-6 times, with an interval of 2-3 months.
Laser treatment of spots, moles, etc. The skin will have a natural recovery process, just like a normal pregnancy can only be born once in October, and no one can surpass it. After laser surgery, at first, black focal dementia may appear on the wound. After 1-3 days, the wound has slight redness and exudation (especially in the orbital area or the wound with large burn area), and a few people may have blisters and then dry, forming dementia. /kloc-After 0/8 days to 2 weeks, the dementia skin exfoliated and healed. After cure, a few patients will have atrophic scars or hypertrophic scars. After dye laser treatment, the skin surface can appear white, then ruddy, or light brown, and the pigment gradually approaches the skin color after 3-9 months. The younger you are, the faster people with good skin condition will recover. Therefore, we should wait patiently after laser treatment, and avoid being impatient and asking for trouble.
In principle, do not scrub with water within two weeks of laser treatment. To protect the wound surface clean, some lubricating drugs can be used, and antibiotic ointment can be used locally if necessary. Avoid removing scabs early and let them fall off by themselves. In addition, direct sunlight and ultraviolet rays should be avoided. After treatment, some patients may have red skin color and then pigmentation. According to different personal conditions, the pigmentation will gradually fade after 1-6 months. After 1-3 days of scar laser treatment, swelling and a small amount of exudate will appear in the treated area and surrounding tissues, which can cause swelling and numbness. After that, the swelling gradually subsided and the scab healed in 1-2 weeks. Laser hair removal will be accompanied by a little tingling or slight burning. Most patients describe their feelings of being treated, and most patients describe their feelings of being treated as if a rubber band had bounced, without anesthesia to relieve the pain. After treatment, the skin of the treated area may appear reddish, like sunburn, because laser treatment will not damage the skin, so there is no need for dressing change and special care.
Due to the complexity of various pigment problems, in order to protect normal skin, some pigments need to be treated in stages, such as nevus OTA, chloasma, dermal spots, mixed color tattoos and so on. , the interval varies from 1-2 months.
6. Nursing after laser treatment
1) There may be slight pain during the treatment, or there may be temporary redness and swelling, which will disappear by itself.
2) After 7-14 days, the scab membrane fell off and the wound healed. Individual patients may have normal temporary pigmentation after operation, which will be gradually absorbed. Oral vitamin C can reduce pigment reflux.
3) Antibacterial ointment or oral anti-inflammatory drugs can be applied during healing to prevent secondary infection. Avoid direct sunlight and ultraviolet rays. Otherwise, temporary pigmentation will occur, and scars may appear after infection.
4) Before the scab falls off, do not touch water, make-up or rub in the treatment area, and avoid spicy food, tobacco and alcohol. In the near future, dark fast food, such as coffee, Pepsi, etc. And let the scab fall off on its own, not forcibly. Don't take part in strenuous exercise to avoid infection after sweating.
5) After the treatment of pigmented skin diseases, you must pay attention to sun protection. Pigment fading is a slow biological process, generally 65,438+0-3 months, during which you must continue to protect yourself from the sun. In order to obtain the best effect, it should be repeated for more than 3 months.
6) According to the nature of the lesion, the depth and location of the pigment, some diseases may need multiple treatments.
7) If there are no special circumstances after treatment, you can come again every 2-3 months. If you have infection or other conditions, please come to our center in time.
When sleeping, the pillow should be raised to reduce facial edema (the treatment site is on the face). The treatment site is around the eyes. If the eyelid is swollen, ice can be applied to the affected area, or the eyelid can be forcibly closed to reduce edema. Do not use other drugs or cosmetics before the scab at the treatment site falls off, so as to avoid inflammation of the affected part. After the scab skin falls off, you can wash your face normally. It takes three months for the parts that need supplementary color, such as eyebrows.
7. Treatment considerations:
1) After laser treatment, the pigment may disappear or decrease once or more.
2) Laser treatment is superficial, and there are generally no scars.
3) Pigment changes may occur in a short time after laser treatment and disappear after several months.
4) Within two weeks of treatment, it is not advisable to scrub in principle.
5) Small-area treatment only caused local slight swelling. There will be obvious swelling during large-scale treatment, especially around the eyes, which will disappear after three to five days.
6) There may be slight redness and light brown scab after laser. Pay attention to the protection and cleaning of wounds, and use some lubricating drugs. Avoid removing scabs early and let them fall off by themselves.
7) About half a month after operation, special mask treatment was performed.
8) The treatment site is sensitive to sunlight, and sunlight should be avoided for three months after treatment, and sunscreen lotion should be used if necessary.
9) Try to avoid sun exposure for three weeks before treatment, so as not to hinder the therapeutic effect.
10) within one week before receiving laser treatment, aspirin and other drugs should be avoided to prevent easy bleeding.
In addition, there are two situations that need special attention:
① Patients with scar constitution may leave ugly scars, so laser treatment should be cautious. Once there is a problem, you should seek active treatment from a doctor.
② If the patient's pigmentation is caused by endocrine factors, it may be "revived" after laser removal. Such patients need to combine other treatments to adjust endocrine disorders, use decoloring drugs, take large doses of vitamin C, and eat more fruits every day. After a period of time, most skin tissues can return to normal, superficial scars can be calmed down, and pigmentation will also fade. However, for some deep spots and large moles, laser treatment may leave scars or pigmentation, which are carefully considered by beauty lovers before laser treatment.
8. contraindications
1) patients with skin cancer.
2) Abnormal development of nevus, malignant nevus, etc.
3) Scar constitution.
4) Acute skin or taking photosensitive drugs.
5) Photosensitive skin or taking photosensitive drugs.
6) Coagulation dysfunction or taking anticoagulant.
7) Exempt from service defects.
8) Psychological disorders and pregnant women.
9) Skin lesions related to melanoma (such as dysplastic nevus and malignant nevus). );
10) customers who are unwilling to bear the risk of slight scar formation should not be treated; Excessive pigmentation or dark spots caused by inflammation and drugs (including cosmetics) are not suitable for treatment.
References:
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