I agree with Christine on the teeth. The hygienist told Martin than when they start to go, it's like a ladder in your tights, there is no stopping the decay. You should by given some toothpaste with 5000 more fluoride than the normal ones.
Also a side effect you haven't mentioned (but that you might not get) is thrush. Look out for it. It appears quickly and it looks like you have white fur on your gums. It's very easily treated with antibiotics, but look out for it.
Good luck.

Girlfriend to Martin 49 years old at diagnosis
Diagnosed with SCC unknown primary June 2008.
Cancer found in single node Stage N2A (3 to 6cm).
Tonsilectomy 16th june, Radical modified neck dissection left side 30th june.
30 TX radiotherapy ended 9th October
First comparative study scan came back clear