A painful bump on the back of the ear can be caused by folliculitis, boils, epidermal cysts and other diseases, which need to be treated with medication or surgery.
1. Folliculitis: a small bump in the back of the ear fossa that is painful to press may be caused by folliculitis. For bacterial infection, patients can use antibiotic drugs under the guidance of the doctor, such as erythromycin ointment, fusidic acid and so on. Or oral doxycycline, cefuroxime and so on.
2. Boils: A small lump in the back of the ear can be caused by boils. Patients can follow the doctor’s instructions to use topical antibiotics such as mupirocin and fusidic acid. For pus-filled boils, incision and drainage is needed.
3. Epidermoid cysts: A small lump in the fossa behind the ear that is painful when pressed is also considered to be an epidermoid cyst associated with a bacterial infection. The patient should be treated with anti-infection therapy under the guidance of the doctor, and if necessary, incision and drainage, after the inflammation subsides, surgical treatment should be taken, such as through the small mouth cyst removal surgery.
There are many reasons why there is a small lump in the fossa behind the ear, such as lymphadenitis, etc., and patients need to find out the cause of the disease in a timely manner.