I’m 15 years old and recently, two scabs appeared on my right boob. I don’t remember anything that could have caused them. One is about the size of a dime but is very thin and the other is about  the size of an eraser for a mechanical pencil. I don’t know what to do for them. I’ve started putting mupricocin on them from when I had an impetigo scab on my face and there is no history of breast cancer in my family. What do I do?