The basic indications for laser skin killing are as follows:
1, skin wrinkles caused by ultraviolet overexposure and aging are very suitable for CO2 laser grinding. Common wrinkles are mostly distributed around the eyes and mouth, but also in the neck, ears, nose and chest. In some parts, while scanning grinding is used, chemical stripping can be used to assist in the treatment of large-scale cases.
Those wrinkles caused by muscle movement, such as skin wrinkles between eyebrows, nose and lips, cannot be completely removed by laser grinding, but we have noticed in practice that forehead wrinkles can indeed be improved by laser grinding, but they are more likely to recur than those not caused by muscle movement.
2.CO2 laser grinding has a good effect on healing scars, surgical paralysis scars and traumatic paralysis scars in practice. Generally speaking, concave scars and non-proliferative scars are the best indications for laser grinding. In addition, after hypertrophic scar or keloid is flattened and softened by other treatment techniques, it can be used to make it look like the surrounding skin tissue after 6-8 weeks of observation.
3. Some epidermal diseases, such as seborrheic keratosis, papulosis nigricans, epidermal diseases, etc. CO2 laser vaporization has a good cosmetic effect. Benign skin tumors, such as sweat gland adenoma, hairy neurilemmoma, xanthoma of face, sebaceous gland hyperplasia, benign junction floor, etc., are actually located in the dermis, but they can also be removed by this laser without complications.
4. CO2 laser is often used to treat hyperplastic rosacea and mild cheilitis because of its good cosmetic effect, fast healing speed and low risk of scar formation. This kind of ultra-pulse laser is much better than the previous laser in beauty effect, mainly because this new machine improves the interaction between laser and tissue. More bleeding in wood is no longer a thorny problem. Although CO2 laser grinding is an absolute contraindication, in some cases, the therapeutic effect will be unsatisfactory. As mentioned above, wrinkles related to muscle activity (such as brow wrinkles, deep forehead wrinkles and nasolabial groove wrinkles) can rarely be permanently improved by any CO2 laser grinding, but they can be improved to some extent. In addition, for patients who take retinoic acid for a long time in the near future, laser grinding should not be carried out within 65,438+0 years after stopping taking retinoic acid. Theoretically speaking, retinoic acid drugs have an effect on the skin structure of such patients, and scars are easy to appear after operation. Generally speaking, patients with lighter skin color are more suitable for this operation than patients with darker skin color and brown skin. Although laser grinding can still be carried out in people with darker skin color, this pigment change may sometimes not appear or disappear through continuous application of hydroquinone drugs. In addition, if the patient has used other treatments before (such as grinding wheel peeling, chemical peeling, collagen or silica gel injection, etc.). ) and local tissues are fibrosed to varying degrees, the effect of laser dermabrasion will not be satisfactory.