@kent8692 you have a long healing process ahead of you and I'm happy to hear that you are having some improvement in taste. This radiation damage heals slowly, like months to years. It becomes so gradual that you don;t notice the improvement right away. Dry mouth is something that will likely improve but I still deal with it 14 years later. Some people on this forum have used hyperbaric oxygen treatment to speed healing but I have no experience there.
I have found that just staying hydrated makes a big difference in my dryness. While we thing we are drinking a lot because of constant sipping, sometimes more quantity is needed. Electrolyte drinks can actually hydrate better than water sometimes.
I like the Biotene products like the mouthwash and gel, havent used the lozenges much and don't feel the spray is as helpful. I use Zylimelts at night, a little tablet that sticks to your gum to release Xylitol over hours for saliva stimulation. A cool mist ultrasonic humidifier at night by the bed helps. Others on this forum have used a Himalaya Salt Tablet candy purchased on Amazon. I am currently trying those now. A very refreshing feel to my mouth thanks to the menthol in there and it lasts a while. Sipping ice water right after a candy yields instant brain freeze!
That's a lot of work hours while trying to recover from radiation fatigue and I admire your dedication. Do you feel your strength returning since you are back to work or just still too tired to tell?