My MO, as great as he is, wanted me to take colloidial silver for the mouth sores, I dould have ended up with grey tinged skin forever and the treatment value was dubious at best. It was a quack remedy from the 1800's (there is a section dedicated to that on quackwatch as well).
http://www.quackwatch.org/01QuackeryRelatedTopics/PhonyAds/silverad.html For some unknown reason, some peoples salivary glands make some recovery. Most persons who had IMRT will get much of their salivary function back in about 2 years, as I did. I have even regained some salivary function in the right parotid gland which was supposed to have been obliterated by the radiation.
Unfortunately, many quack remedies are promoted by MD's. For a detailed article on the efficacy of acupuncture see:
http://www.quackwatch.org/01QuackeryRelatedTopics/acu.html