Most people have the bacteria their entire lives and remain asymptomatic (no symptoms), while in a few people, it can lead to serious complications if left untreated. These may include stomach cancer, bleeding, severe gastritis, etc. In comparison, people diagnosed and treated early have an excellent prognosis. The eradication rate of H. pylori infection is high when FDA-approved antibiotics are used. The recovery rate is higher in antibiotics combined with PPIs or acid reducers.