Pimples on your back

I was watching this show on cable where the girl in the story kept getting pimples on her back. The girl thought that she was just going through an acne problem and began looking for body acne treatment creams. After a few months she noticed it was getting worse, so she went to the doctor. Come to find out she was not having acne problem at all, it was something more serious. It shows how something you think is so simple can turn out to be more then you thought.