Hi,
Swelling on the right side of the neck can be caused by various factors such as infections, overactive
thyroid, cancer, and other medical conditions. Enlarged
lymph nodes are a common cause of swelling and can be a sign of a viral or bacterial infection in the body. However, other factors such as thyroid issues, cancer, or even a
benign cyst may cause swelling in the neck.
It is essential to visit a doctor to identify the underlying cause of the swelling. It is possible that the swelling may not be serious, but given that it has become more visible and there is occasionally an ache in the area, it is important to have it checked by a healthcare provider. Your doctor can perform a physical exam and order any necessary tests to determine the cause of the swelling and recommend appropriate treatment if necessary.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Priyanka, General & Family Physician