Hey All,
If there's a post about this already, it didn't come up when I searched so I'm sorry if I'm repeating...

My dad just finished treatment 4 weeks ago and in the last few weeks seems to have lost sensation and control of his right foot. He drags it or very consciously picks it up with each step in order to walk. A google search about radiation effects to extremities when radiation is received in the head/neck yielded nothing. SO, my question is, is this a typical radiation side effect or is this more likely some goofy thing unrelated to his cancer treatment?

Thanks in advance for your help here!