Expert Opinion :
This child has had recurrent gastritis. Treatment with antacids does not seem to help the child. Hence, one needs to find out the cause of his gastritis. Duodenal ulcer is the commonest cause of peptic ulcer disease and is associated with pain, belching, and retrosternal pain. Just hematemesis may be due to drug-induced gastritis or alcohol or stress which seems to be unlikely in this child. Another entity one needs to rule out is H.pylori infection. This can be done by rapid Urease test at the time of OGD scopy or by doing H.pylori IgA and IgG ELISA test. In this child, H.pylori rapid urease test was positive. He was treated with amoxicillin, metronidazole, and proton pump inhibitor to eradicate H.pylori infection.