Heliobacter pylori infection occurs when a type of bacteria called Helicobacter pylori, or H. pylori, infects the stomach. H. pylori bacteria may be spread from person to person through direct contact with saliva, vomit, or feces. It may also be spread through contact with unclean water or food. H. pylori bacteria can travel to the stomach where it may cause sores or irritate the stomach’s lining. If left untreated H. pylori can cause stomach ulcers. Symptoms of H. pylori infection may include stomach pain.
H. pylori infections are commonly treated with drugs that help protect the stomach and drugs that help lower the harm caused by bacteria. Antibiotics such as metronidazole (Flagyl) may be used to help kill bacteria. Side effects may include metallic taste. Proton pump inhibitors such as esomeprazole magnesium (Nexium) may be used to help lower the amount of acid in the stomach, which helps to protect the stomach’s lining. Side effects include headache