I never had general mouth sores but i got Thrush all the time. Use to freeze yogurt sticks and keep chipped ice on hand.
I had ( have) neuropathy in my hands. I keep one of those stress ball things with me and squeeze it when i feel my hand stiffening up. I also found warm parafin wax treatments to really help. outside of that I stocked up on solo cups and put the china dishes far away. I also have quiet the collection of fat pens.
Stay strong my friend and know that you are in good company.
Kathy