Gary, a middle-aged salesman, complains of a burning pain in the pit of his stomach, usually beginning about two hours after eating and abating after drinking a glass of milk. When asked to indicate the site, he points to the epigastric region. The GI tract is examined by x-ray. A gastric ulcer is visualized, and drug therapy using an antibiotic-bismuth approach is recommended.
a) Why is this treatment suggested?
b) What are the possible consequences of non-treatment?