Acne marks on the back can be eliminated by medication, laser treatment and filler injection. 1. Medication: For patients with acne marks on the back, it is recommended to follow the doctor’s instructions for external use of compound heparin sodium allantoin gel, silicone gel and other drugs, which can lighten and eliminate acne marks. 2. Laser treatment: Laser treatment has better efficacy in eliminating acne marks, usually based on the photothermal principle of releasing high energy laser, which can break down the pigment, promote collagen growth and recovery, and achieve the effect of eliminating acne marks. 3. Filler injection: For patients with localized acne pits, they need to choose filler treatments, such as hyaluronic acid filler, which can help repair the depressed skin, thus eliminating acne pits. The back of the acne mark elimination method is more, it is recommended that patients go to the regular hospital, with the doctor for standardized treatment.