Gastritis and peptic ulcer are currently considered infectious diseases. Gastric inflammation (gastritis), as well as stomach and duodenal ulcer (peptic ulcer disease), result from a gastric infection by the bacterium Helicobacter pylori. The inflammation is usually caused by hypersecretion of stomach acid.
One of the simplest and effective home remedy to cure gastritis would be to take a tsp of ajwain with a pinch of salt. Gulp this mixture with a glass of lukewarm water.
Coconut water also proves to be effective in treating gastritis. Take coconut water twice a day.