Be my guest to go online and see all the people who tried natural methods to get rid of H Pylori. I read of at least 5 who tried to take very large quantities of all those things and more to eradicate themselves of it and they could not.
H Pylori is extremely hard to get rid of and the HP forums are riddled with people who spent copious amounts of time, money and cabinet space for herbs all in vain.
By the way....I am one of those people. Seven years ago I did the most strict protocol to get rid of H Pylori and after a very long time I finally had to give up. I took the 1st line of treatment that I described and felt better after one week and never had to take anything else for it.
I am not advocating against herbs and I will always try herbs to help me if I think they will help. I think ingesting garlic, turmeric, ginger, fennel, cayenne and the like is one of the best things you can do for yourself. However, I cannot deny that there are some things that simply cannot be solved by these herbs alone - parasites and H Pylori are but a few.
I also practice (regularly)....meditation, exercise and massage, but these things also cannot cure one completely if the ailment is dire.
There is a place in this world for pharmaceuticals and this is a fact. They should not be over used and/or abused but there is a place.