The treatment is effective about 80% of the time but since you're still having symptoms he might want to retest you for H Pylori. If you test positive for HP again they'll just restart with a different antibiotic for a second go round.
If you're not infected, he might want to change your PPI (nexium) to another type of antacid to see if that works better for you.
are you still burping
you need to be tested 6 weeks after finishing your antibiotic thereapy
lucky me took all 4 therapys without getting rid of it
finally got sent to the infectious diease doc and his last effort worked
there are some natural rememdies and i was planning on trying them if the meds didnt work
virgin pine nut oil
would be the first i would try but there is more