A growth on the ear that hurts when pressed needs to be treated according to the specific cause (e.g., boil, sebaceous cyst), including medication, surgery, and general treatment. 1. Boil: If the boil can burst on its own, it can be left untreated. If the condition is more serious, topical mupirocin ointment and ichthyol ointment can be used under the guidance of a physician. 2. Sebaceous cysts: Generally speaking, sebaceous cysts grow slowly, and can affect life after sudden enlargement and pain. The treatment is mainly based on surgical treatment, and anti-infective treatment, such as topical erythromycin ointment, is needed before surgery. It is recommended to go to the hospital in time, according to the doctor’s instructions for targeted treatment, daily need to keep clean, do not feel free to scratch the lumps.