Black acne marks are usually caused by hyperpigmentation after acne inflammation, then patients can remove them through topical medication, laser treatment, and general treatment under the guidance of a doctor. 1. Topical medication: patients can use hydroquinone cream, azelaic acid gel or arbutin under the guidance of the doctor to improve. 2. Laser treatment: For black acne marks on the face, strong pulse laser or laser fractional treatment can also be used to improve. 3. General treatment: Patients with black acne marks need to pay attention to sun protection in daily life, such as applying sunscreen when going out and wearing sun-protective clothing and hats. For patients with black acne marks on the face, if they are self-conscious of the impact on aesthetics, it is recommended to go to a regular hospital in a timely manner, under the guidance of a professional doctor for standardized treatment. The above drugs need to be used in accordance with medical advice.