The symptoms as mentioned in your post can be attributed to GERD.
It is caused by reflux of acid from stomach to esophagus due to relaxation of the sphincter at the lower part of esophagus.
Management consists of:
1. Lifestyle modification- like weight reduction, sleeping on the left side, or with upper body raised.
2. Dietary modification- avoid consuming irritating substances such as acidic & rich foods, caffeine, nicotine, and alcohol.
3. Medical management- Proton pump
inhibitors like Omeprazole, Rabeprazole
,etc. (which prevent acid formation in stomach) + Domperidone
preparation (strengthens the sphincter & prevents reflux).Sucralfate
syrup can also be added to assist healing of ulcers & prevent formation of further ulcers.
So, it will be better to consult a Gastroenterologist
and discuss regarding the further plan of management.
Wishing him a good health & speedy recovery.