Back acne marks can be removed by fractional laser, medication and filler treatments. 1. Fractional laser: If the acne marks are just formed, the laser can be used to promote the proliferation of subcutaneous fibrous tissues to achieve the purpose of repairing depressed acne marks. 2. Medication: For patients with acne marks on the back, patients can apply drugs such as sodium heparin sodium allantoin gel and silicone gel under the guidance and advice of doctors, which can effectively lighten and eliminate acne marks. 3. Filler treatment: For patients with localized acne pits, they need to choose filler treatment, such as hyaluronic acid filler, which can help repair the depressed skin, thus eliminating acne pits. After treatment, patients need to change bed sheets and bedding diligently, keep the back dry and clean, and try to eat less spicy and stimulating food to avoid adverse consequences. When taking medication, you should follow the doctor’s instructions, and remember not to take it privately to avoid adverse effects.