Had 3 tests a CBC, Lymph and mono...all came back normal. I am on an antibiotic now too but my lymph node and neck pain seems to be getting worse.

Not sure what. initial symptoms or infection you were diagnosed with... Normal blood tests are reassurring. With upper respiratory infections sometimes the lymph nodes will enlarge and become more tender in the first few days or week of antibiotic treatment while the infection is being treated. It should improve after 3-4 days. The lymph nodes should go down over the next 1-2 weeks. if not needs CT neck.