Hi,
Glad to hear that you are done with your Radiation. Once you were done, the Radiation still contiues to work on you for a period of 2-3 weeks. Roughly after that period, your recovery begins with the healing of your mouth and neck. As mentioned many times, each person is different and also the number of RAD's that you received. You may have received less than some and more than others.
I found that when I gargled with the baking soda and salt solution prior to eating, it would numb my mouth a bit and it wouldn't seem to burn as much. Worked for me.
Hang in there, your almost over the worst. Take Care
My Best to everyone here