There are multiple potential causes of enlarged lymph nodes in the neck area. Most of the time, this occurs due to infection or inflammation (such as from a sore throat or other types of infections). Much less commonly, enlarged lymph nodes can be a sign of cancer.
You would do much to improve your health by giving up smoking.
Sincerely/ Robert A. Wascher, MD, FACS
www.doctorwascher.com
www.oncoguard.com