Those who are older than 60 years old and have thin skin are more prone to recurrence after laser spot removal because the skin metabolic ability and collagen proliferation ability become poor, so the differentiation of spots and the choice of laser energy level during treatment are quite important. In the case of sun spots and age spots, the repair period will increase to 2 to 3 months, which is also called transitional recurrence. Post-operative repair is important, and not maintaining after surgery can also cause recurrence. It is important to moisturize more after laser treatment for one week, because the skin will be dry after laser treatment, so timely moisturizing becomes quite important. Usually, you need to put on more face and drink more water. The better the moisture retention of the skin, the less likely it is to absorb UV rays and the melanocyte metabolism will increase. You need to avoid using whitening products on your face. Be sure to do a good job of sun protection. Sun protection after laser blemish treatment is not seasonal, no matter it is winter or summer, sun protection is necessary. However, some spots will be darkened during the transition period, that is, the color will become darker (melanin floats to the surface of the skin) in a week to a month, and will become lighter in 2 to 3 months. Because laser is a kind of high energy light wave, users need to use it properly, and they also need to have a comprehensive understanding of the cosmetic problems and choose a reasonable treatment method. If you need laser treatment, you should consult a professional plastic surgeon or dermatologist.