cy - what you are describing is a pretty common dental situation called pericoronitis. This is a chronic inflamation and later infection that develops when 3rd molars do not fully erupt into the oral cavity. Many times they cannot because of thier angulation, and a partial eruption takes place. Bacteria enter around this spot and eventually you have an infection. When it gets bad, the lymph nodes of the neck can become involved. Once the molars are removed, and the infection is treated with antibiotics (pre and post surgery) that should wrap things up. The fact that the pain went away on the antibiotics was a good sign, sounds like the regiment of antibiotic treatment didn't last long enough, or you needed stronger/other types. No harm in having the ENT check things out that are still bothering you for peace of mind.