Chondrodermatitis Nodularis Helicis Doctor, what is this sore on my ear?  Chondrodermatitis Nodularis Helicis (CNH), I reply.  Yes, it is one of those conditions that dermatologists like to name to sound smart.  In reality, though, this is a simple and common condition that is often stubborn to treat.  Let’s break it down. Chondrodermatitis – Inflammation of the cartilage … Continue reading What’s This Sore on my Ear?