I developed a sore on the side of my tongue just after I started eating again. It gets smaller and almost seems to heal up until I eat something that irritates it. It has been at least 16 months since i finished radiation. It is next to an implanted tooth so I wonder if the scatter from radiation has caused this area to be more sesitive. Anyway, I wonder if it will ever heal up. Doesn't stop me from eating almost anything though...