Is what I am taking just masking the pain or is it starting to heal.......?

I have had severe pain in chest area and upper belly for 5 months now. Finally found out it is inflammation in the stomach (gastritis). I have stopped taking my NSAID and am watching what I eat and no more coffee. I have started taking Nexium, Pepcid A/C and drinking a lot of coconut water. For the last 3 days, am starting to feel a bit better. Less pain so was wondering if it is starting to heal or when I stop everything, will the pain still be there?