Treatment depends on the cause of gastritis. Medications that neutralize stomach acid (antacids) or other medications that reduce stomach acid secretion will usually drive away the symptoms and improve / weaken the illness. Drugs and means that can cause gastritis should not be used (alcohol, non-steroidal anti rheumatics, iron preparations, etc.)
On the market there are two groups of preparations for the reducing of gastric acidity: H2-antagonists (ranitidine, cimetidine, famotidine) and proton pump inhibitors (omeprazole, pantoprazole, lansoprazole).

Treatment of gastritis caused by H. pylori is a combination of antibiotics, blockers of acid secretion and gastric mucosa protective. Currently the most accurate is triple therapy with two antibiotics against H. pylori in combination with drugs that block the secretion of acid or with protective (azithromycin + amoxicillin + omeprazole). It relieves symptoms, kills its cause and prevents relapse (return of the disease).