Hopefully the surgeon got all of the cancer, and the rads and chemo is clean up. Ideally it's best to get all the chemo, but some do fine without the last dose. I missed mine which would be equivalent to 2 of the weekly doses. I had a week they had to delay it because of my blood counts - its normal. Your dad sounds super sensitive to it. Paul B here on the forum has had a simia issue with his chemo way back. So they're giving him Erbitux this time. Sending prayers your way!