Hey ,
Resveratrol has been researched and is related to many health benefits. It can help reduce inflammation in the body and it is a potent anti-oxidant. Some small studies show a reduction in inflammation caused by H. Pylori, although these studies are animal studies. That doesn’t mean it won’t help, but the current literature doesn’t specifically looked into resveratrol and gastritis in humans.
Since you have been addressing H. Pylori successfully, it wouldn’t suppress inflammation caused by it. But resveratrol does reduce inflammation in general. It wouldn’t be my go-to recommendation personally, but it’s worth trying!