Water coming from foodpipe to mouth cont

He is facing this issue from past 6 months, continuous water comes from food pipe to mouth and his mouth feels ( meetha meetha full day and chip chip karta hai). He only feels comfortable while sleeping all other time he feels ki muh mein paani aa raha hai food pipe se. He used to take pantosec-d six months before but he stopped taking that without consulting the doctor and he is facing this issue also from.5-6 months. Now he has again started taking pantosec-d though no improvement can be seen in this thing still. So please suggest what we can do i am atraching the prescription of the opd we did here though nothing improved in his health from these medicines, and i am also attaching the salts from which he is allergic