Both the EMC and SMI websites just reek of scam and bogus medicine IMO. Mix a little truth with a lot of lies is the recipe these places use.
The American Cancer Society site shows zero Immunotherapy approved by the FDA for head and neck cancers unlike some other cancers. It is a promising future alternative but at least for oral cancer, it seems "not quite ready for prime time"
But since you already had real TX - the only harm would appear to be to your pocketbook and these side effects
[quote]Side effects of immunotherapies can vary, but most exhibit similar symptoms, including fatigue, a rash or swelling at the injection site, and flu-like symptoms including nausea, diarrhea and fever.[/quote]
MD Anderson uses immunotherapy but my understanding is not for oral or head and neck cancer. It has a good reputation even if they stole OCF's slogan. Here is a link to their page where I excerpted the side effects
Immunotherapy
As for patients who use that instead of the TX you got, well they are dead so they won't be responding.
Charm