I noticed a large tender spot behind my right ear about a week and a half ago. It’s feels like a bruise. The bone behind the cartilage is sticking out prominently, but is still hard, not swollen. The mother said it is a bit red, but it could be from me touching it. I currently have a perforated eardrum in my right ear because of a hole that didn’t close after tubes surgery when I was a baby. Sometimes water gets in it when I shower, but I haven’t had ear infection-like pain.