Blackheads are formed when sebaceous gland secretions clog hair follicles and the exposed portions become blackened by oxidation, a mild manifestation of acne. Acne pits, also known as post-acne scarring, is a condition caused by improper acne treatment. Clinically, they can be treated with life modification, medication micro-needling, chemical peeling, laser and other methods. 1. Blackheads: daily rest, avoid staying up late, eat a light diet, and if necessary, follow the doctor’s advice to use medications such as retinoic acid cream and adapalene to help regulate keratin. 2.Scars Micro-needle: micro-needle can stimulate the local skin to produce an inflammatory response, can be introduced at the same time to promote the repair of drugs such as growth factors, etc., to promote tissue regeneration and collagen remodeling, conducive to scar repair. Chemical peeling: through chemical ingredients to stimulate keratin renewal, so that the skin peeling, remodeling, improve scarring. Commonly used clinical ingredients such as: fruit acid, salicylic acid and so on. Laser therapy: through thermal effects, promote dermal fibroblast proliferation, repair, so as to repair the scar, commonly used such as fractional laser. The treatment of blackheads and acne pits should be carried out under the guidance of a physician, do not self-medication, in order to avoid improper treatment, resulting in further aggravation of scarring.