A hard lump in the earlobe may be caused by keloid and sebaceous cyst, which can be treated by medication and surgery. 1. Medication: A hard lump in the earlobe may be caused by the proliferation of skin connective tissue in the earlobe area after the patient’s earlobe was injured, which is a small and hard red rash at first, and gradually becomes a hard lump. It can be treated with medications such as Trilostat capsules, Trilostat and Fluorouracil. If the effect of medication is not good and affects the appearance, it can be treated with surgery. 2. Surgical treatment: patients with a hard lump in the earlobe may be caused by sebaceous cysts, patients are often accompanied by endocrine disorders, sebaceous gland secretion, can be treated by excision surgery, in the acute stage of inflammation you can choose to complete the excision of the lesion. A hard lump in the earlobe, it is recommended to go to the hospital as soon as possible to confirm the diagnosis, standardize the medication and treatment.