Hello Sue
You have found THE site for oral cancer information and support. It is disturbing that cancer can be misdiagnosed for so long but now your husband can begin the treatment to cure the disease.
There is a lot of info on the American Cancer Institute about diet for cancer patients and how to make food more appetising and nourishing. Also recipes.
He is fortunate to have you to accompany him on his journey and I wish you well. Love and light from Helen