If symptoms are not going away completely that is indicating that medicine is helping but only partially.
So I would suggest , write down in full details about your symptoms.
Each and every detail , regarding your problem.
These medicines must have been advised in dearth of symptoms .
There are thousands of Homeopathy medicines for gastric complaints .
Which suits you need your individual symptoms.
Medicine you are taking are set combination of medicines which are effective but in your case you need some other med , that's why you are not attaining complete cure.
Next Steps
consult , provide complete case details and start medication
follow doctors instructions
Health Tips
eat balanced diet
avoid saturated fats
have plenty of fluids
avoid stress --- as it is one major cause of gastritis.