Usually, you can wash your face with facial cleanser more than 48 hours after dot matrix laser treatment. However, in the choice of facial cleanser, we should choose facial cleanser that has been used before and is not allergic and produced by regular manufacturers. When you wash your face, you will find that the scab will gradually fall off with the water. Don't dig with your hands when washing your face, otherwise pigmentation will easily occur. If the skin is red and swollen, you can wash your face with facial cleanser for another 2 days. If there is no obvious tingling sensation when washing your face with facial cleanser, you can wash your face with facial cleanser.

After the dot matrix laser is finished, scabs will appear on the surface, which will make the pores breathe poorly. If the pores are blocked for a long time, the oil secretion will be more vigorous and it will be easier to inhibit acne. Therefore, you can wash your face with water for more than 48 hours, and avoid waiting for a long time before washing your face, which is not good for your health. It is suggested that patients go to the plastic surgery department of the local hospital for face-to-face consultation, and then choose dot matrix laser treatment, because treatment in a regular hospital is guaranteed. If you feel unwell after treatment, avoid dealing with it at home and go to the hospital in time. After lattice laser treatment, the therapeutic effect can be seen when the scab falls off completely, and the effect is stable at about 1 month.

I hope my reply is helpful to you.