Hi, I had sinus infection and couple of short cold within the past two months, the most recent was 3 weeks ago with sinus and ear infection, my doc prescribed antibiotics for me. now after three or more weeks I feel one of my lymph nodes on my muscle of the neck just at the bottom of the right ear, when I turn my head to the left is slightly enlarged. So Im concerned about this lymph node. In addition I had a cyst on my ear lobe which was due to playing with a black head on the ear. now it has turned read a hurts when I touch. SO I wanna ask is the lymph node due to previouse infections, ear skin cyst or can it be something serious?