Painful and swollen lymphnodes can be due a lot causes like serious viral or bacterial
infections such as leprosy ,TB,Lymphoma Hodgkins
and non Hodgkins,Cat scratch disease,parasitic infections like filariasis,sarcoidiosis,,medications like Antibiotics,Hyperthyroidism and cancers.But if some of the diseases are to be ruled out then some other associated symptoms are to be observed like high fever,difficulty in swallowing,night sweats,urinary problems,loss of weight,anorexia,itching.