Laser acne treatment usually takes 1 month as a recovery cycle. After one treatment, most of the patients can see improvement in the skin condition, facial skin moisturization is enhanced, oily symptoms are reduced, and rosacea is darkened, etc. The specific effect varies from person to person. Patients with acne marks that have existed for a long time or have heavy symptoms may not be particularly effective with one treatment, and usually require multiple laser treatments, which can be done once a month. 3-5 treatments are generally recommended to increase the effectiveness through multiple treatments. Laser treatment has a better control of oil secretion, sterilization and anti-inflammatory effect, the skin after treatment will be red, swollen, scabbing, pigmentation, which is the natural process of skin from damage to repair, usually 7-10 days to be able to scab, wait for the scab to fall off naturally can, generally 1-3 months pigmentation will disappear. After the laser treatment, you must pay attention to skin care to help recover and maintain the efficacy of the treatment. Do not let the wound get wet before the scab falls off to avoid infection, eat less spicy and irritating food, and strictly protect yourself from the sun, which can easily aggravate hyperpigmentation if exposed to ultraviolet light. During the recovery period, try not to use cosmetics to prevent the chemical substances in them from stimulating the skin.