I have a hard bump under my ear that hurts when I press it. Why?

A hard bump under the ear that hurts when pressed may be related to lymphadenitis, sebaceous cyst, folliculitis, mumps or boils. It is recommended to seek medical treatment promptly for a clear diagnosis and avoid squeezing or scratching the affected area.

1. Lymphadenitis

There are many lymph nodes distributed in the area under the ear. When bacterial or viral infection occurs, the lymph nodes may undergo an inflammatory reaction. Common manifestations include local hardness and tenderness, which may be accompanied by fever or fatigue. You can use amoxicillin capsules, cefixime dispersible tablets and other antibiotics as directed by your doctor, along with local hot compresses to relieve symptoms.

2. Sebaceous cyst

Blockage of the sebaceous gland ducts may lead to the formation of cysts, which may become red, swollen and painful when infected. The cyst is hard and painful when pressed. If secondary infection occurs, drugs such as Levofloxacin Hydrochloride Tablets need to be used to control the inflammation. In severe cases, surgical removal is required.

3. Folliculitis

Local bacterial infection of hair follicles can form red indurations with obvious tenderness. It may be related to improper cleaning and excessive sweating. Topical mupirocin ointment or fusidic acid cream can be used for treatment, and the affected area should be kept clean and dry.

4. Mumps

Viral mumps often presents with swelling and pain below the earlobe, which may be accompanied by fever. It needs to be differentiated from bacterial mumps. Viral infections can be treated with ribavirin granules as an antiviral treatment, while bacterial infections require antibiotics.

5. Boils

Bacterial infections such as Staphylococcus aureus may form boils deep in the hair follicles, which may be hard and tender in the early stages and may suppurate in the later stages. Ichthyostatin ointment can be used externally to promote maturation. After suppuration, incision and drainage are required, and oral cephalexin capsules can be used to control the infection.

You should pay attention to keeping the area behind the ears clean every day and avoid touching the affected area frequently with your hands. Eat a light diet and consume more fresh fruits and vegetables rich in vitamin C, such as oranges, kiwis, broccoli, etc., which can help enhance immunity. When symptoms such as persistent pain, enlarged masses, or accompanying fever occur, you should promptly go to the general surgery or otolaryngology department for complete blood routine, ultrasound and other examinations to confirm the diagnosis. During treatment, avoid spicy foods and ensure adequate sleep to promote recovery.