The dry mouth is, I believe, bearable. You see in the hospital head and neck cancer patients carrying a bottle of water around with them. You will need to pay e tea attention to your dental hygiene. The lack of saliva causes tooth decay. So you’ll need to clean your teeth well, use the Waterpik to floss every time you eat, and use your fluoride trays every night and consider switching to a toothpaste like PreviDent 5000 Plus which will strengthen the enamel in your teeth. Unfortunately, this is all part of the new normal. Of course, it depends on how much damage radiation has done to your salivary glands.