For the treatment of acne pits, the following options are available: 1. Fruit acid treatment: Fruit acid treatment is to reduce the adhesion of keratin-forming cells by interfering with the binding force of the cell surface, accelerating the shedding and renewal of epidermal cells, while stimulating the synthesis of dermal collagen and enhancing the moisturizing function. 2. Intense pulsed light: 1450 nm laser , pulsed dye laser, can also help with the elimination of red acne marks in the later stages of post-inflammatory acne.3. Laser treatment: Atrophic scars, can also be treated with laser or ultra-pulsed carbon dioxide laser grinding. Larger atrophic scars can be treated with fractional laser or surgery.4.Other: Since most acne patients have oily skin and lack of moisture, you can use medical skin care products with oil control, regulation of water-oil balance and skin barrier repair, or masks containing collagen ingredients.