Gastritis is said to be an overall inflammatory reaction of the stomach, and sinusitis is said to be specific to the site. Sinusitis also belongs to the category of gastritis and there is no such thing as which is severe. When symptoms of sinusitis appear, first, further examination is needed to identify local causes, such as the presence of H. pylori infection and the extent of local gastric mucosal damage. Second, the specific symptoms need to be combined to give drug treatment, treatment preferred for proton pump inhibitors, such as omeprazole, pantoprazole and the like, to reduce the secretion of gastric acid, and to give drugs such as bismuth potassium citrate, given to protect the gastric mucosa and promote the repair of damaged mucosa. There are also dietary adjustments, regardless of the severity of the symptoms of gastritis, you should pay attention to diet, try to eat three regular meals, less spicy and stimulating as well as cold food, to reduce the stimulation of the stomach.