I am recovering from cancer located at the base of my tongue, I have a very sore tongue and what I use to cut pain immediately is usually a swish of salt and soda water, I make it by the pitcher, I double the amount of baking soda to the amount of salt. Usually I make it to taste. Trying to eat is difficult, things I can eat are scrambled eggs with cheese, soft boiled eggs, cereal softened in milk, pudding butterscotch ,vanilla, macaroni & cheese. I have ventured to eating hamburg, hotdogs, chicken, very plain no spices, this has been a very difficult experience. Magic mouthwash is the best thing prior to eating. Wishing you and you husband well.
I would hearing about anything which helps the situation.