Thank you for the opportunity. Saliva builds up as soon as I manage to expel it, which is usually quite difficult. I often resort to brushing my teeth to allow the toothpaste to dislodge the thickened saliva. Have had this for about a year. Acid re -flux is extremely rare- not more than once in 3-4 months. Have tried nexium , but no effect other than , possibly, drooling when asleep. Thank you. Ali