For pain under the right side of the rib cage after eating, omeprazole, colloidal bismuth, and anti-inflammatory and biliary tablets can be used. The right side of the human body under the ribs is the part belonging to the gastric sinus, duodenum, and gallbladder. Pain after meals is mostly caused by gastric sinusitis and gallbladder diseases, and treatment is needed for these diseases. For the right subcostal pain caused by gastric sinusitis, it can be treated with drugs that inhibit gastric acid and protect the gastric mucosa, such as omeprazole and colloidal bismuth, which not only inhibit gastric acid secretion, but also protect the gastric mucosa and promote the repair of the gastric mucosa. After the condition of gastric sinusitis is improved, the symptoms of subcostal pain after meals will disappear. The large intake of fatty foods in the diet can lead to excessive bile secretion and even trigger the onset of cholecystitis. For the pain under the ribs after meals caused by cholecystitis, you can use anti-inflammatory and cholagogic tablets for treatment, which can not only promote the remission of inflammation, but also dilate the common bile duct, promote the excretion of bile, and also assist in the discharge of relatively small gallstones, thus improving the effect of cholecystitis Therefore, it can improve the effect of cholecystitis.