You could try rinsing your mouth with a combo of 16 oz water, 2 tsp baking soda, 2 tsp salt. If the salt burns decrease the amount or omit it. Swish around in your mouth for about 15 seconds and spit it out. Repeat this at least 4 times per day, tit will help with mouth sores.

Magic mouthwash has several different combinations. I used one made of lydocaine, malox and benedryl. It worked great for me. It numbed my mouth for about 20 minutes so I was able to eat. I used it the same way, swish about 15 seconds and spit out.

Make sure you are keeping your doctor informed about every change like this. Try drinking chocolate milk. I would drink that and yoohoo to soothe my sore mouth. It would soothe the burning when I ate something too spicy. Your mouth is beginning to get ultra sensitive. Thats from the radiation.

Even if it get difficult to swallow, keep doing it. Even taking small sips of water several times per day will help keep those muscles active. It will be much harder later to relearn to swallow. Try a thicker liquid like the chocolate milk, that may be easier for you to swallow.

Hang in there. Its a rough road but you can do it.