Laser birthmark removal and postoperative care after laser birthmark removal often lead to the following situations, so self-care should be carried out in a timely and reasonable manner. After treatment, swelling and small blister lesions only slightly swollen in the treatment area; After the treatment of large-scale lesions, especially after the treatment around the eyes, there will be obvious swelling, and the swelling will reach its peak in 1-2 days. This is a normal reaction, no need to be afraid or treated, and it will subside after 3-5 days. If the swelling is particularly obvious, the appearance will be deformed and there will be more blisters or erosive exudates on the surface. Please see a doctor at this time. After the treatment of itching, itching occurs from time to time, even severe itching. Never scratch or wipe with other objects. Neohydrocortisone ointment can be applied twice or three times a day for three consecutive days. After scabbing treatment, a thin layer of brown or gray scab will form on the skin lesions, which will fall off on its own in about 10 days. If there is yellow exudate or pustule under the scab skin and there is redness around the scab skin, it means that there is mild infection, so we should attach great importance to it and seek medical treatment in time. Some patients with hyperpigmentation, hypopigmentation's disease and scar will leave different degrees of hyperpigmentation spots or hypopigmentation spots locally after treatment, without conscious discomfort and without special treatment, and will return to normal after several months. A few patients have superficial scars after treatment due to deep lesions and do not need special treatment. Most of them will return to normal in a year or so. Very few patients will leave scars because of improper care and serious local infection. Taking correct nursing methods can prevent these situations. Don't scratch the wound after treatment. When washing your face, wet the wound; In case it gets wet, gently dry it with a towel, and apply tetracycline ointment or chlortetracycline eye ointment to the wound for protection until the scab falls off. If infected, change the dressing every day under the guidance of a doctor until the wound heals. ]