Consider cancer screening: Some lumps, especially those associated with nasopharyngeal carcinoma or skin cancer, require cancer screening. Pay attention to any changes in size, shape, or texture, and consult a doctor if you notice any suspicious features.

Monitor the lymphatic system: Enlarged lymph nodes, whether in the neck, underarms, or groin, require attention. While infection is a common cause, persistent swelling may indicate underlying health problems, including lymphoma.

Rule out infection: Viral and bacterial infections often appear as lumps in the neck or behind the ear. Conditions such as mononucleosis, strep throat, chickenpox, or meat pox can lead to inflammation and swelling.
Treatment of sebaceous cysts: If the lumps are due to sebaceous cysts, resulting from blockage or damage to the sebaceous glands, a medical evaluation is necessary. Although it is usually benign, it may require treatment if it is accompanied by symptoms or prone to complications.

Ultimately, consulting a healthcare professional is crucial for an accurate diagnosis and personalized management of neck or ear masses. Do not hesitate to seek medical care for timely intervention and peace of mind.