Chondrodermatitis nodularis helicis (CNH) is a skin condition that affects the cartilage of the ear. It’s a painful nodule, which may or may not have a scab on it, that grows over a period of time.

Chondrodermatitis nodularis helicis — or CNH for short — is a condition that affects your outer ear. ... Use a soft pillow or cut a hole in your pillow to relieve pressure on your ear.

The skin conditions chondrodermatitis nodularis helicis or CNH affects the cartilage in the ear. ... Make a hole in the pillow around the ear area to reduce pressure or buy a special cushion for CNH.