Yesterday I was touching my ear and I felt this bump on my ear. It's located right above my ear piercing and near where my ear attaches to my head, and when you touch it, it hurts and it feels like there's this round thing there. I got my first piercing 6 years ago and I got my second a year ago. So I don't think its from that.
It could just be a cystic acne pimple.. I would not get concerned unless it lasts for more than a week or so or if it continues to get inflammed. I have one on the outside of my ear that's just going away after a week.