Hi Hillary,
My Dad just began treatments for unknown primary. He had a neck dissection first and the size of the infected node was 4 cm. They said it could possibly be two nodes but all others were clear. He is on Erbitux once a week and began radiation this week. They are radiating both sides and all other possible areas. He is also taking the Amofistine as is doing ok but of course we just got started. Keep in touch as it seems we are going through this together. My Dad was in excellent health prior to this and has never smoked.