I have been diagnosed with squamous cell carcinoma on the right floor of mouth/tongue. I had surgery to remove as well as a follow-up of radiation and followin that, chemo therapy. During radiation I had a sever flare-up and had to stop the IMRT treatment. It was resumed and I concluded the treatment.

My question is if re-radiation of this same area, especially the head and neck, is possible and if so, how many times has this been done before. My understanding was that when you had radiation you cannot reradiate the same part over again? it is true?
Sofar my doctors has suggested IMRT, stereotactical radiation, proton treatment and I have difficulty deciding which would be the best, could you let me know your opinion?

Thank you for your help.
pino