lincolnob,
I’m sorry for your troubles! You’re at that time when some of the radiation side effects begin, two weeks or 10 days of treatment.
There are some things you can to do that may help alleviate some of the mouth pain.
I was in pain medication such as an opioid and fetynol. I used biotene mouthwash, along with their toothpaste and dry mouth gel at night. I slept on an incline to help the mucus, and used a humidifier to help dry mouth. During the day I used to put these otc oral tabs for dry mouth in the cheek of my mouth, and traveled everywhere with a water bottle. Sometimes I threw one of the dry mouth tabs in the water, but check with your doctor on that. It was my remedy. The oral gel for dry mouth I put on my lips too at night.
You mention two mouthwashes. I hope one does not have alcohol such as top named brands. That would dry your mouth out too.
You need to be follow-up by your radiation oncologist too! They should test for thrush, which most everyone gets. Stay away from sugar, alcohol, crunchy or sharp textured food to cause cuts and feeds thrush. There are medications for thrush, and when I had radiation it was clotrimazole, I believe, or other azole medication.
It doesn’t sound like you have a peg tube as there is no mention of one?
I hope this helps, and if you have any other questions, ask here, besides that if your doctor.