Confused which H. pylori test to do after treatment? I had a few symptoms, but mainly I was losing weight and having breathlessness. The doctor did an endoscopy with an H. pylori test, and it came positive. I took the 14-day treatment. Even after two months, I still have the same symptoms — weight loss and breathing problems. I am confused about which test I should do now to check if H. pylori is gone: H. pylori Stool Antigen Test or H. pylori Urea Breath Test. The urea breath test is expensive, so I want to know which one is better, which one is more accurate, and which one is enough for me.