###Human: How to resolve the pimples on my mid back area persisting for more than two weeks? ###Assistant: Hi. I have gone through your case. There are many types of acne. Some people develop pimples on back. In my opinion, take capsule Doxycycline 100 mg once daily for two weeks. Apply Clindamycin lotion two times a day. Do not apply any oil or any home remedy. Vitamin E capsule is fine.