A lump inside the ear that hurts when pressed may be caused by boils on the external auditory canal or sebaceous cysts in the ear, which should be treated with medication or surgery according to the specific cause. 1. Boils on the external auditory canal: In boils on the external auditory canal, the local area may bulge with a small bag, the pain at the swollen area is more obvious, and sometimes the swollen area breaks down and pus infection may also occur. In this case, you can use mupirocin ointment, cefdinir and other anti-infective treatments under the guidance of a physician. However, the use of medications should be in accordance with the doctor’s instructions. Boils can be incised and drained after localized suppuration. 2. Sebaceous cysts in the ear: If there is a sebaceous cyst in the ear, it may cause a small bag in the ear and is often accompanied by infection, under the guidance of the physician, the use of drugs such as cefuroxime to relieve the pain. If the cyst is large and the symptoms are more serious, it can also be surgically removed if necessary. If there is a small bag in the ear, and there is pain after pressing, you should go to the hospital in time for examination, clear diagnosis, and follow the doctor’s instructions for medication and treatment.