How can you reduce lymph node swelling the neck?

Monitoring Centers: The lymphatic system absorbs and carries things too big for the arteries and veins like bacteria eaten by white cells and digested food. A lymph node "tastes" lymph to see if anything bad is there like bacteria, viruses, cancers, etc. When it detects a problem, it alerts the immune system and enlarges in response to the inflammation they create when they react. They reduce when the problem heals.