My Wife Is Suffering From Heavy Burning Sensation Inside Stomach

My wife is suffering from heavy burning sensation inside stomach , feels vomiting and run more frequently to wash basin to vomit with loud sound but not actual vomiting .
She went under endoscopy as advised by doctor As per endoscopy report it is " Antral hyperemia with rut -positive s/o H Pylori gastritis "
Doctors prescribed the following medicines
1.Pantocid Hp Kit 6 Tablets in Strip
2. Ganaton 50 mg - one tablet morning and evening
3.Prothiaden - 25mg - one tablet night before sleeping
She is taking these medicines since last six days , still she is having burning sensation and feeling hot in stomach .
She is diabetic and BP Patient. Age 55 yrs
Kindly advice
Regards