Pain below the earlobe may be caused by inflammation of the lymph nodes. Lymph node inflammation is characterized by redness, swelling, pain and even pus formation on the surface of the lymph nodes, which is a benign lesion caused by bacterial infection. Treatment requires oral antibiotics, such as oral cefixime, cefradil, ciprofloxacin, etc. If an abscess forms, the abscess needs to be cut open under local anesthesia to drain the pus, and then the wound needs to be changed. It is also possible that the pain is caused by mumps, which is a viral infection. In the early stage, there will be pain under the earlobe, and later a mass will gradually form, about two centimeters, and the pain will be more obvious when pressed. Patients may experience pain when opening their mouth or chewing food. Treatment requires antiviral medication, including oral antiviral drugs such as oseltamivir or intravenous ribavirin, and as much rest as possible to strengthen the immune system during the treatment process.