My lymph node on my right side of my neck is really swollen could it be because of my zit on my ear that popped?

Quite possibly . Yes, it is possible. The infection on the ear drains into lymph nodes of the neck for "clean up" so to speak. We sometimes see "reactive adenopathy" in response to a small skin infection. If the node is red overlying, you develop fever, or it's very tender to touch, you need to be seen by your primary doc. Hope this helps! .