Dear Doctor: What is surfer’s ear, and how do you fix it? It happened to my sister a few months ago, and the people she surfs with are saying it’s because she won’t wear earplugs. Why would that matter?
Dear Reader: Your sister has developed a condition known as external auditory canal exostosis. The word “exostosis” refers to an area of new growth on an existing bone. In this case, as the name des…