Just an idea, fungal infection? I was improving after treatment until about 1.5 months after then everything went downhill back to the way I was right after treatment. I just figured it was part of the back and forth I was told I would experience so I dealt with it. When I did finally see the RO he put me on antibiotics for a fungal infection even tho there were no signs and it made a world of difference. I had ear and jaw pain, increased difficulty swallowing, choking, increased pain in general in my mouth and tongue that felt like muscle pain and stinging on lower part of my tongue back where I could not see. Apparently its very common and must have something to do with chemo because I know other C patients who had C in other areas who have increased problems with fungal infections on skin and other places.