Children’s freckles should pay attention to the protection of sunlight exposure, and severe cases can also be treated with laser. The causes of freckles are related to hereditary factors and external factors such as bright light stimulation. Therefore, it is necessary to avoid sunlight exposure, apply sunscreen when going out and try to cover up the sun when going out. Photorejuvenation can also be taken to lighten freckles. After consulting dermatologists, the commonly used method is fractional laser, through fractional laser irradiation treatment, generally after three to five times of treatment, most of the freckles will be lightened and absorbed. In addition, attention should be paid to the nutritional aspect, the children should mix coarse and fine food, eat more fruits, and pay attention to the supplementation of B vitamins. Especially for those children who usually have strong partiality for food, they should pay attention to correcting their dietary habits.