My husaband still suffers after 2 yrs since radiation therapy, 33 treatments, surgery on base of tongue, stage 1, tonsil and lymph nodes all left side removal. His taste is always rotten, and a build up in the back of his throat. Any new suggestions, he's tried everything, he is miserable most of the time, forces himself to eat food. He had lost 70 lbs, after all that. Lives with his water bottle, saliva pills, and sprays etc. HELP THanks gramee