A clinical examination is necessary for correct diagnosis and treatment of your condition. The common causes are enlarged lymph nodes, sebaceous cysts and mastoididtis.One of the most worrisome cause of a lump behind ear is cancer. Pain relievers, antibiotics and antiviral medication help treat and relieve the symptoms of swollen lymph nodes. Sebaceous cysts occur due to swollen hair follicles or skin trauma.Mastoiditis will be accompanied with fever, ear pain, hearing loss and ear redness. These are only a few possibilities. This is merely an advice and not a substitute for clinical examination. Do get evaluated by a doctor .Do keep us posted.
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