Acne, also known as acne, is a common chronic inflammatory disease in adolescence and a common dermatological disease, which occurs in young people. Because of environmental factors, many adults now suffer from acne. The main clinical manifestations are acne, papules, pustules, nodular cysts and pain. The main pathogenic factors are related to the increase of androgen and cortical secretion, propionibacterium acne infection and hyperkeratosis of hair follicle oral epithelium. Before laser treatment of acne, acne was only treated by drugs. With the appearance of laser, the treatment of acne is not a single drug treatment, but laser treatment of acne and drug-assisted treatment, which greatly shortens the time of acne treatment. 1450nm laser, intense pulsed light (IPL), pulsed dye laser and dot matrix laser are one of the effective methods to treat acne and acne scars at present, and can also be used in combination with drugs. 1450nm laser is approved by the US Food and Drug Administration (FDA) to treat acne. Intense pulsed light can help the red mark in the late stage of inflammatory acne fade. Lattice laser can improve acne scars to some extent. Treating hand tools with 420 nm intense pulsed light can eliminate inflammation. Nursing care after laser treatment of acne is very important, which also determines the effect after treatment. First of all, non-skin should be hydrated and moisturized after laser treatment. This is because after laser treatment of acne, the face will be dry. This is because of lack of water. Moisturizing mask should be used within one week after treatment to achieve the best effect. Followed by sun protection. The skin after laser treatment is very fragile. If the sun protection is not in place, the color will sink after ultraviolet radiation. Therefore, patients should choose sunscreen products that are not irritating to the skin under the advice of doctors. Finally, spicy food is very irritating to the skin, especially for acne patients. Drugs are light in diet, please follow the doctor's advice and go to the hospital regularly.