Acne Treatment Isn't Just For Teenagers

I had problems with my skin when I was a teenager. Most teens do. Now my niece, a pre-teen, is starting to have to deal with acne. When I went to visit last, she and her parents were going around and around about her acne treatment. She didn't like it, it was too expensive, etc. But acne isn't limited to young people. Some friends of mine of a "certain age" are still having problems with acne. I don't see their acne, but they say it is there, hidden, kind of under the skin. Almost a bruise or something??? Not sure what they are reallly talking about, but I know it drives them crazy.