Cetuximab is more commonly known around here as
Erbitux. Yes, it is chemo. Its up to your treatment team what your individual case was offered. Thats why is always best to have a treatment facility which uses a team based approach.
Your treatments have finished. All any of us can do is find the very best medical professionals and treatment facility and go with it. Since its after the fact, there isnt any going back and redoing what treatments were given. Second guessing wont change anything. It will just add unneeded stress.