Acne pits usually refer to the scar left behind by acne, and those with severe scarring can be treated by medication, laser treatment, chemical peeling, dermabrasion, and tissue filler. 1. Medication: Patients with acne pits can use silicone preparations, sodium heparin allantoin and other drugs externally to improve the symptoms of acne pits. If combined with inflammatory infection of acne pits patients, also need to target the acne itself for treatment, can be used externally benzoyl peroxide, retinoids and other drugs for external treatment. 2. Physical therapy: Usually, laser therapy, intense pulsed light therapy and radio frequency therapy can be used to improve the symptoms of acne pits. 3. Chemical exfoliation: Chemical exfoliators are applied to the lesions to induce coagulation of keratin, necrosis of epidermis and dermal papillae to different degrees, and the stratum corneum is then peeled off and gradually replaced by the newly grown epidermis. Commonly used drugs are 25%~30% salicylic acid, 20%~70% glycolic acid, 92% lactic acid and so on. 4. Dermabrasion: It refers to the controlled mechanical grinding of the epidermis and the superficial dermis, and the epidermis is regenerated during the trauma recovery process, thus improving the acne pits. However, pain and bleeding can occur during the grinding process. 5. Tissue filler: For the depressed scar that is relatively large, tissue filler can be used to alleviate it. Through injections and surgical means, fillers are placed in the tissues below the depressed scar to fill the defect and repair the scar. Each patient’s condition is different, so the treatment method is also different, you need to choose the appropriate method of treatment under the guidance of a professional doctor.