Facial pits, or depressed facial scars, are considered to be the result of scarring left over from the healing of acne and pimples, and can be improved through chemical skin resurfacing and photoelectric treatment. 1. Chemical skin resurfacing: For depressed facial scarring, we can use suitable concentration of fruit acid or salicylic acid to resurface the skin. Fruit acid or salicylic acid treatment can soften the local skin and promote exfoliation, thus speeding up the renewal of keratinocytes. Promote the proliferation of elastic fibers at the scar hyperplasia, for shallow depressed scar has a better improvement effect. 2. Photoelectric treatment: For deeper pits, they can be repaired by laser treatment, such as fractional laser, erbium laser and so on. The laser can make thermal damage to the pitted tissues of the face, which can stimulate collagen proliferation and rearrangement at the scar, and can improve the appearance of facial depressed scar. Those who are willing to improve the appearance of depressed facial scarring are recommended to visit a regular medical institution and choose an appropriate treatment plan under the guidance of a specialist according to different conditions.