See the skin colour above the
lymph node, if the
skin is red or pink, it means that the
lymph node is loosing the battle against the infectious agent, you better get yourself checked then. Some drugs( like anti-epilepsy drugs Phenytoin) or vaccine (for typhoid fever) could also cause painful lymph node swelling. If other signs like fever, weight loss , tiredness and weight loss are accompanying painful lymph node, you better rush to the hospital, could be the indication of serious infection,.