Some of the antibiotic medications can also be useful if you are facing a more serious form of acne on back. Some of the medical experts may suggest their usage on identifying a serious acne outbreak on back. Minocycline and Erythrocycline are some important types of antibiotics against acne. You should also keep the possible side effects in mind that can hamper other body functions before moving on with these medications. Consult your doctor for useful suggestions.