eating oranges is beneficial when there is a wound, sore or ulcer in the stomach.
Traditional
आलू · Potatoes
Half a cup of raw potato juice twice a day before meals — long used in naturopathy, though the trial evidence is thin; the alkaline juice buffers acid while it sits in the stomach. Never use a green or sprouted potato: the solanine in it is poisonous. Most peptic ulcers are caused by H. pylori and close only with the antibiotic course, so get tested rather than treating this at home.
Traditional
On this page Documented — There are human studies behind this ingredient for this particular complaint. Traditional — Carried by tradition and experience; modern evidence for this particular complaint is limited.
All of this is what others have found — tradition, shared experience and the studies done so far. It is not advice given to any one person. Before changing your diet, and especially if you take any medicine, ask your dietician or doctor.
Naturopathy
Cold abdominal pack twenty minutes before meals; never eat while upset or in a hurry.