Why Hasn T My Persistent Burping Caused By Acid Reflux Improved Despite Delton And Ganaton OD?

Form last 5 months I am suffering from burping. I have done endoscopy and resulted acid reflux. I have taken medicine like Sompraz hp kit , instaraft syp, ganaton total , simcon tab , sucral o , chloropomazine, baclofen , . Presently I am taking delton 60 mg and ganatond od but condition is same as previous