Black pimples on the back, consider and folliculitis, sebaceous cysts, flat warts and other manifestations of pimples related to the disease, can be treated by local medicine, physical methods, surgical methods. 1. Folliculitis: When folliculitis occurs, the local pus dries up or breaks down and becomes a scab, and then black pimples appear. You can cooperate with your doctor to apply erythromycin ointment, mupirocin ointment and other medications locally, which can inhibit the local bacteria and thus alleviate the condition. 2. Sebaceous cysts: mainly caused by sebaceous gland duct obstruction. When the sebaceous gland secretion gathers for a long time, it will trigger the condition of black acne. This can be a surgical procedure to remove the cyst completely, so as to achieve the effect of healing. 3. Flat warts: If you have flat warts on your back, you will also have black pimples on your back. The actual fact is that the actual warts can be a lot more than just a few of them, but the actual warts can be a lot more than just a few of them, and the actual warts can be a lot more than just a few of them. If you have black pimples on your back, it is recommended that you go to the hospital in time to get standardized treatment as soon as possible. The above drugs need to be used in accordance with medical advice.