When they give you the 3 medication course, make sure you follow up to see that H Pylori has been eradicated. To this day, after 2 tests, I think some might still be remaining, so I will again go for an upper endoscopy to make sure. You can get a secondary breath test that requires fasting at some hospitals, but the hospital I went to didn't do them, so the second upper was necessary with the test. The gut microbiome takes a beating because of the 2 antibiotics and PPI you'll be taking, so that's why it's best to start on probiotics asap. eating Kimchi, yogurt, sauerkraut and any other fermented foods is also necessary to maintain that microbiome while taking the course. H Pylori is likely the reason you got the ulcers, and it needs to be treated asap so it doesn't lead to cancer. You can also get it from kissing or water. Up to 70% of people already have it and SE Asia is a hotbed for it with the dirty water possibilities.