1. Immediate skin care can minimize erythema, soothe pain, reduce skin temperature and avoid discoloration. You can take live water, water retention mask, humanoid collagen mask wet compress for 0.5-1h, apply epidermal growth factor gel. After non-ablative fractional laser surgery, wet compresses can be applied with topical L-Vc + efow + serum together (fractional laser assisted drug delivery, skin absorption will increase 20-30 times). 2, 7 days after surgery continuous wet mask, 1 month to avoid sun exposure, 2 weeks not massage, fumigation, medicinal bath; if the skin redness and swelling is heavy, can be applied externally soft hormone cream for 3 days, take non-steroidal anti-inflammatory agents; recovery period should avoid intake of spicy, idiopathic food (seaweed, sea cucumber, beef and mutton, etc.), photosensitive food or drugs. To prevent post-inflammatory discoloration, the use of depigmentation agents (such as hydroquinone cream) should be continued for 1 month after surgery. 3. Temporary small blisters or large blisters may appear in certain diseases (such as erythema nodosum), do not break the blisters and wait for natural drying. If the blisters are large, puncture them with a sterile syringe and draw out the water or squeeze it out gently from one side. Once the blister is ruptured, disinfect it regularly (iodophor 1-3 times daily), do not close the bandage, and apply topical scalding cream.