After chloasma laser treatment, routine care and proper treatment of adverse reactions should be carried out. 1. Routine care: when going out, it is recommended to use physical sunscreen or sunscreen with at least 30SPF, and try to use physical sunscreen such as sun hat or umbrella to prevent anti-tanning or sunburn. Treatment area laser 3 days after the operation, avoid the use of products containing irritating, exfoliating or class Vitamin A acid ingredients; should drink plenty of water and external repair moisturizing mask; avoid staying up late, avoid spicy and stimulating food or tobacco and alcohol. 2. Treatment of adverse reactions: after the operation, there will be redness and burning sensation, which will disappear within 24 hours. If the redness and heat symptoms are obvious or not relieved, you can freeze the repairing mask and apply it externally or wet compress with cold water. If there are symptoms such as blisters, infection and continuous pain, you should go to the hospital immediately. For specific care after chloasma laser treatment, you can consult the professional physician’s opinion and strictly implement it to avoid adverse consequences.