Helicobacter pylori infection is not related to urticaria, which is a skin rash caused by the stimulation of allergenic substances after the body comes into contact with certain allergenic substances, and is one of the common allergic diseases. Helicobacter pylori, on the other hand, belongs to the common pathogenic bacteria of gastric diseases. In the case of gastritis and gastric ulcers, if the occurrence of Helicobacter pylori infection is accompanied by the treatment of gastritis or gastric ulcers only without the treatment of Helicobacter pylori infection, the persistent recurrence of gastritis and gastric ulcers will occur. Whenever gastritis and gastric ulcer with H. pylori infection as described above occur, anti-H. pylori infection treatment is required in addition to gastritis and gastric ulcer treatment.