Skin is more sensitive after photorejuvenation treatment, after the scabs gradually fall off, cosmetics can be applied in about 1 week. Generally, after the photorejuvenation treatment is finished, it will go through the following phases, and you can judge whether you can apply cosmetics according to the phases: 1. Redness and swelling period: within 3 days after the photorejuvenation treatment is finished, redness and swelling reaction may occur. At this time, you need to avoid the use of cosmetics, you can apply ice packs, moderate supplementation of vitamin C, pay attention to moisturizing, sunscreen measures; 2, scabbing period: 4-7 days after the end of treatment, the redness and swelling gradually subside, and a layer of non-invasive thin scab will be formed. At this time you need to pay attention to avoid washing your face with hot water, you can apply some ointment until the scabs fall off. During this period, you need to avoid the use of cosmetics, at the same time, you need to do a good job of sunscreen, to avoid pigmentation; 3, scab shedding period: 1 week after the end of treatment, the scabs will gradually fall off naturally, and you can use cosmetics after the scabs fall off completely. Photorejuvenation treatment should pay special attention to the end of sunscreen measures to minimize the time out of the house in the daytime. You can use sunscreen with SPF 25 or so to avoid the sunscreen with high sun protection index from hurting your skin. At the same time, you can cooperate with physical sun protection, use sunscreen mask, sunscreen clothing, sunglasses and so on.