After seeing my dentist after having two fillings break while on chemo, she gave me Colgate Dry Mouth Wash to try and it seems to work. I still use it after the chemo for a good breath freshener, alcohol free. I also used warm water and salt but added 1/4 teaspoon bicarb soda to it as well. My hospital gave me some complimentary mouth wash solution satchels which contained sodium bicarbonate which gave me the idea. I cleaned my teeth after every meal and flossed once a day but did this carefully so as not to cause any bleeding. I only got a mouth sore once at the beginning of chemo and Mich is right. It only lasted for a day or two. I hope you don't have ongoing problems with this. I'll keep my fingers crossed for you. Love Janey xxx