Hi, my partner is a 23 year old female and she has developed a line of 10 large-ish pimples along her spine, starting from the small of her lower back and cease at her bra line. They re not painful at the moment, but they were painful a few days ago when they were inflamed and full. She hasn t picked or played with them and some have gone down on their own but they haven t gone completely. She has a bmi of 27.5 and no real medical history except childbirth and a minor laser treatment for dysplasia of the cervix, so we re not sure what s happening with these strange pimples - is it normal for pimples to form a straight line along the spine?