The appearance of acne on the back and chest indicates that the patient may have inflammatory acne, which can be eliminated through oral antibiotics, physical therapy, and topical medication, as follows: 1. Oral antibiotic therapy: Oral tetracycline products can be taken, and you can generally choose doxycycline or choose minocycline oral therapy. 2. Physical therapy: Some people form acne with inflammatory stimulation symptoms. The company’s main business is to provide a wide range of products and services to the public. You can topically apply clindamycin phosphate gel.