The pain of chronic gastritis may be a problem with the gastritis itself, like irritation caused by excessive stomach acid. It can manifest as upper abdominal pain, acid reflux, heartburn, etc. This condition can be treated with acid-suppressing and mucosal-protecting medications. Proton pump inhibitors are generally the first choice, such as omeprazole, rabeprazole, lansoprazole, etc., which usually achieve the therapeutic goal. Additionally, if the acute stomach pain is caused by exposure to cold or inappropriate diet, this is usually accompanied by gastric spasms, showing as intermittent abdominal pain, even colic. In such cases, antispasmodic pain relievers, such as scopolamine butylbromide, can be appropriately used. At the same time, it is important to avoid cold exposures, and maintain a light, easy-to-digest diet. (Please use medications under professional medical guidance.)