Medically reviewed by Sukaina Hasnie, MD Key Takeaways A lump behind the ear is often caused by swollen lymph nodes or acne.Most lumps behind the ear are harmless and treatable by healthcare providers ...

Pimples can show up almost anywhere on your body, including the inside of your ear. There are many reasons why you might get an ear pimple, like sharing earbuds or not clearing ear wax. The good news ...