Hello and welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.
Consume plenty of liquids  in form of boiled water , lemon juice , coconut water ,
home made juices , organic  tea , coffee , butter  milk  etc .
Prefer soft , light  , bland , vegan  diet  with fresh  curd  preferably .
Avoid  all types of  oily , spicy , non veg , hot beverages , junk foods , dairy fat ,
milk  , aerated drinks  till recovery .
Intake of PPI  ( as 
omeprazole ) , antibiotics  ( with 
metronidazole on pack ) ,
Racecadrotil as an anti secretory agent , antispasmodic  agent as dicyclomine
requires prescription with your doctor .
Hope I have answered your query. Let me know if I can assist you further.