A 10-year-old child with chronic gastritis, Helicobacter pylori infection, and constant stomach pains is mainly treated with medication, and may be considered for eradication of Helicobacter pylori infection with quadruple therapy. Although children are not currently said to necessarily need to eradicate H. pylori infection, and some children may eliminate it on their own as they grow and develop. However, children with significant symptoms of chronic gastritis may be considered for quadruple therapy. The first combination uses a proton pump inhibitor such as omeprazole; the second is a bismuth preparation such as bismuth potassium citrate; and the third and fourth combinations typically enable two antibiotics such as clarithromycin and amoxicillin. Quadruple therapy usually takes two weeks to clear the H. pylori infection. Follow your doctor’s instructions for specific medications. A 10-year-old child with chronic gastritis, H. pylori infection, and constant stomach pain is advised to go to the hospital for timely treatment or therapy. All of the above medications should be used under a doctor’s supervision.