Sore cartilage: Could be an infection due to bacteria or inflammation due to long term damage or sun called chondrodermatitis nodularis chronicus helices.
Answered 9/28/2016
5.5k views
Infection, cyst: Look for redness, or discharge along with the tenderness. If they are present, you may have an infection.
Answered 9/28/2016
5.4k views
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