Thank you all for your responses. Could I ask a couple follow up questions?

Yes he has prescribed and I am using Magic Mouthwash

1. As far as the dry mouth issues that happens, now 1/2 through and the mouth is dry using everything I can find, I wake up every hour or two because of this, is this normal and does the dry mouth get better? If so, how long after?

2. I see on a couple of your profiles "teeth out", sorry to see that, and I heard of radiation causing possible mouth issues, what are the causes and issues, and is this the norm or just a rare occurrence for "throat/base tongue" cancer? Or a specific cancer type?

3. My cancer is Squamous Cell Carcinoma, originating base tongue, that went to lymph node, with no known cause (no smoking/drinking/no family history, etc., and it was all left side. Just yesterday I had a white sore on the left side gum where he looked and said it was a fungus? So I have another mouth wash he said should knock it out in a day or two?

Now the right side of my throat is real sore, and my right lymph node feels sore....

Thanks again for reading