Laser can produce a kind of visible light with high-intensity instantaneous energy, and lasers with different wavelengths will be absorbed by special colors or pigments in the skin. For example, freckles absorb green light easily. The laser with different wavelength energy has different effects. At present, there are as many as 7 or 8 kinds of lasers used to treat skin problems.

Ruby laser, which is often heard, uses the laser principle, takes ruby as the medium, mainly aims at black and brown pigments and spots, and combines light and pigments to decompose. When the pigment is gradually absorbed by the body, the color of the spots will fade.

Matters needing attention in laser freckle removal

1. A few patients may have scabs, blisters or temporary pigment changes after treatment. Don't worry, it's normal. If the situation is serious, communicate with the doctor in time and cooperate with the doctor to do the corresponding treatment.

2. What should I pay attention to after laser freckle? I must do a good job of sun protection.

3. There may be some burning sensation and slight redness on the skin of the treatment site after operation, which is also a normal reaction, because the skin of these friends may be sensitive and will disappear automatically after 2 hours, and the ice compress will fade faster.

4. Wash the skin with low-temperature warm water on the second day after operation.

What are the indications for laser freckle removal?

1, spot

Small brown spots from the tip of a needle to the size of a grain of rice, walking on cheeks and nose. Usually in childhood, all the time.

2, mole

Most of them gradually appear after puberty, ranging from several to dozens, with needle tips as big as rice grains, brown or dark black flat spots or protruding papules, mainly distributed in the face and neck.

3, zygomatic nevus

After puberty, it gradually appears, located under the bilateral cheekbones or the lateral sides of the eyes, with gray-blue needle-tip to rice-grain-sized cluster spots, and a few patients have family inheritance.

4, liver spots

After the age of 25, the brown spots gradually increase, which appear symmetrically on both cheeks. The color is similar to that of cooked pig liver, so it is called liver spot, which has nothing to do with liver disease.

5. Sunburn

Oval convex or smooth. Dark brown plaque is easy to appear on the outside of forearm, back of hand, front of calf and face. About the size of a grain of rice to a dime, middle age began to appear.

6, light coffee spots

There are usually irregular light brown patches at birth.