One week after picosecond spot removal can be divided into redness and swelling period, scabbing period, scab shedding period, each period needs to pay attention to strengthen care, regulate diet, etc. to help better healing. 1. Redness and swelling period: 1 to 3 days after treatment. Laser treatment is often immediately after the pain or tingling sensation, individual patients will have a short period of redness and swelling, these symptoms can generally be the same day or the next day gradually disappeared. In this period, patients can use collagen face stickers or ice film compresses to help the redness and swelling subside; care attention to skin moisturizing, wash your face with cold water, go out with strict sunscreen to avoid sunburns leading to hyperpigmentation; diet to a light diet, prohibit smoking, alcohol and spicy and stimulating food, you can add more vitamins such as vitamin C and other vitamins. 2. Scabbing period: 3 to 4 days after treatment is the scabbing period. During this period, the redness and swelling of the skin basically subside, the local pigment deepens, and the original color spots on the skin surface may have different degrees of scabs. During this period, patients should pay attention to light diet, prohibit smoking, alcohol and spicy stimulating food; pay attention to moisturizing and hydration, not to use cosmetics, but still pay attention to strengthen the facial sunscreen measures; at the same time, it is not suitable to wash the face with hot water, and should not take part in intense sports, so as to avoid infection caused by sweating. 3. Scab shedding period: 5 to 7 days after treatment for the scab shedding period. In this period, the local scabs gradually fall off, forming new skin, light pink. During this period, patients should pay attention to the dryness and itchiness, scratching is strictly prohibited, and let the scabs mature and fall off on their own, and should not be forced to peel off; at the same time, pay attention to good hydration and moisturizing work, and strict sun protection. In addition, it is recommended that patients go to regular medical institutions to perform picosecond spot removal operation to avoid adverse reactions.