Painful Pimple On Back. To treat a deep painful pimple at home Dr. Allowing sweat and dirt to hang out on your skin after exercising can be a major cause of pimples on the back and shoulders according to Stylecaster.

Oil builds up on things you touch like pillowcases. The skin at the back of the neck is tougher than that at the front which allows acne to find a place to develop easily. Let it do its job.
If you have acne you.
It can take a few weeks to a few months for an outbreak to go away but it can keep coming back. The best treatment for pimples on back of neck is prevention. Pimples on your back are commonly known as back acne or bacne. This skin condition affects the oil glands and hair follicles.