A 25-year-old man with peptic ulcer of the duodenum, who during the examination N. pylori, increased acid-forming function of the stomach was detected, a seven-day course was completed eradication therapy in a standard dose (omeprazole + amoxicillin + metronidazole) during which he did not stop smoking. During the control examination after 4 weeks - respiratory the test is positive. What will be the further recommendations of the doctor?