Ultraviolet light generally can not kill Helicobacter pylori, the eradication of Helicobacter pylori routinely need four drug therapy, but for the body has a certain bactericidal effect in vitro, in vivo is ineffective. Daily life through ultraviolet light, autoclave sterilization methods can make H. pylori protein denaturation, so as to achieve the purpose of sterilization, ultraviolet light to achieve the effect of sterilization, the need for a long time of irradiation, otherwise it is difficult to completely kill. And has entered the body and in the stomach colonization of H. pylori, the conventional recommended four drug eradication, that is, bismuth + PPI + two antimicrobial drugs, such as bismuth potassium citrate + omeprazole + metronidazole or tinidazole, clarithromycin, amoxicillin, levofloxacin and so on one of the two antibiotics, the specific drugs need to be in the gastroenterologist under the guidance of the medication, the course of treatment for 10-14 days. Helicobacter pylori is parasitic in the digestive tract of a common pathogenic bacteria, the conventional four drugs to be eradicated, but in the digestive tract colonization time is longer or more pathogenic bacteria, the gastrointestinal mucosa produce other lesions, it is recommended to improve gastroenteroscopy and other tests to assess the digestive tract, such as the existence of the bacterial infection, it is recommended to seek medical attention in a timely manner, under the guidance of the physician to treat, to avoid the use of their own medication, so as to avoid delaying the condition.