Stomach pain caused by gastritis may take 1 to 8 weeks to clear up, depending on the type of gastritis and the severity of the condition. There are two types of gastritis: acute gastritis and chronic gastritis. Acute gastritis attack caused by stomach pain, through active treatment with medication, about 1 ~ 2 weeks can be recovered. Chronic gastritis has a longer recovery time and may take 6-8 weeks to recover completely. Acute gastritis requires fasting, fluid supplementation, antiemetic and antispasmodic treatment. Give rabeprazole, omeprazole and other inhibitors of gastric acid secretion, combined with mucosal protective agents, such as aluminum thioglycollate and other symptomatic treatment, vomiting severe need to intravenous fluids to replenish electrolytes. Chronic gastritis can be applied to acid inhibitors, such as ranitidine, etc., gastric mucosal protective agents, such as magnesium aluminum carbonate chewable tablets and other treatments. Gastritis causes stomach pain, it is recommended to consult a doctor as soon as possible, under the guidance of the physician to use medication.