Hello there... Problems associated with teeth, nose and sinus
(infections arising from them) would drain into the lymph
nodes in the neck region....these get enlarged and become painful....there are swellings seen in neck as a result of an abscessed lower tooth- the infection spreads down to the neck and manifests in the form of swelling...swelling in each part of the neck has its own significance. Clinical examination is mandatory. if teeth related consult a Oral and Maxillofacial Surgeon. Otherwise you can consult an ENT surgeon for further management.