Acute gastritis is generally caused by consumption of unclean food or bacterial infection. The main symptoms include nausea, vomiting, and fever. The conventional treatment involves using medications that suppress gastric acid secretion, protect the gastric mucosa, and relieve spasms and pain. If there is a bacterial infection, antimicrobial drugs should be used, and for Helicobacter pylori infection, triple therapy should be applied. Regular attention should be paid to dietary habits, avoiding spicy, greasy, and irritating foods. Ensure that food is within its expiration period, and foods taken out from the refrigerator should be heated before eating. Engage in outdoor exercises to strengthen the physique and enhance the body's disease resistance. (Medication should be used under the guidance of a doctor.)