Laser acne is usually treated with red and blue light and fractional laser. After laser acne treatment, you can use repair mask as well as apply antibiotic ointment, scar removing and pigment removing medication. Red and blue light can destroy Propionibacterium acnes in the skin and hair follicles, and is mainly used for normal acne and nodular acne. Scarring or pigmentation marks may form on existing acne at the end of the red and blue light treatment. A medical mask can be used to calm and soothe after the laser procedure, and medications such as mucopolysaccharide polysulfate cream and compound heparin sodium allantoin gel can be used to inhibit the formation of keloid scars and to lighten them. Fractional laser is mainly used for scarring acne or acne pits, after the fractional laser will have obvious burning or pain in the face, accompanied by a large area of facial flushing. You can use medical repair mask ice to reduce redness and swelling, and when the pain is obvious, you can apply erythromycin ointment, mupirocin ointment and other drugs to prevent infection. Laser acne repair will be different due to individual differences, should be carried out under the guidance of a doctor, laser acne should choose a regular hospital or regular beauty salon.