Back acne with sulfur soap wash has a certain auxiliary therapeutic effect, but should avoid long-term use. 1. Sulfur soap is added to the soap with sulfur content, appropriate use can play the role of sulfur has sterilization, inhibit the role of oil secretion, to improve the symptoms of back acne has a certain auxiliary therapeutic effect. 2. But if long-term or frequent use, the alkaline effect of sulfur soap may cause skin dryness, triggering skin irritation, thus aggravating the symptoms of acne, according to the specific conditions of different skin types to choose the appropriate amount of use. When back acne improves, you should gradually stop using sulfur soap and switch to a mild body wash. It is recommended that patients with back acne go to a regular hospital in a timely manner, follow the doctor’s instructions for standardized treatment, do not self-medication.