The stool test to confirm H. Pylori eradication is typically done at least a month after taking antibiotics or bismuth, to give it time to proliferate and get detectable if it's not eradicated.
I rechecked mine recently and the test was negative but I still have intolerance to acidic fruits and vit C supplements, which means the atrophic gastritis aftermath from years of H. Pylori hasn't healed. I am running 100mg Rebamipide 3x daily now.
