Welcome to OCF, Lori! While being treated and recovering from oral cancer a patient will have major issues with eating. Im not surprised that salt will bother him so much. Every single food and drink will not taste like it is supposed to for weeks, possibly months. All the food problems are usually a temporary hardship and most members will slowly return to eating somewhat close if not exactly like they did prior to having cancer. But it takes time, and when waiting for something like recovery, time can seem to take forever.
Here is a list of foods which will be easier for your husband to tolerate right now.
Easy to Eat Foods Best wishes!!