Thanks for the extra info Gwen. As I said in my previous post, alternative treatments seldom become main streatmand accepted for very good reason.
Chemo cn be exremely difficult...they are poisoning your body, in an attempt to kill the invading cancer. Yes, it makes you really sick. I'm surprised that your brothers MO didn't mitigate the side effects for him more effectively. They did him a huge disservice if they didn't argue the long term gain vs the short term difficulty.
Treating any cancer, and I think oral cancer is one of the worst, treatment wise, is tough. Some of the treatment was incredibly difficult, but the alternative was not acceptable. There is NO easy way through treatment.
If his Doctor is saying that all that can be done is pallitive treatment now, there is nothing stopping you from getting another opinion. It may be the same, it may not, but at least you have more information.
One thing, please. Have him go to a comprehensive cancer care facility, and talk to a mainstream conventional practioner. The alternative treatments have by all indications done nothing but allow the demon the time it needed to grow without being hindered by effective treatment technigues. Its time to really DO something about the cancer that works.
Good luck
Wayne