Back acne marks are usually categorized into red acne marks and black acne marks, and the more commonly used methods to get rid of them include medication as well as photoelectric treatment, etc., which need to be adopted according to the actual situation. 1. Red acne marks: red acne marks are caused by dilation of small blood vessels or inflammation, you can follow the doctor’s instructions to use the cumulonimbus cream, growth factor gel to smear; you can also carry out pulsed dye laser treatment, usually can achieve good results. 2. Black acne marks: black acne marks are inflammatory pigmentation left after acne healing, more commonly used treatments include medication, such as topical hydroquinone cream, vita-acid cream, etc.; you can also carry out laser treatment, through the crushing of melanin particles to promote its discharge, thereby improving acne marks; can also be photorejuvenation or fruit acid skin resurfacing treatment. If the back acne marks are more serious and want to remove them quickly, it is recommended to actively go to a regular hospital and follow the doctor’s instructions to adopt a suitable treatment plan.