Getting rid of H. pylori requires prescription antibiotics combined with an acid-reducing medication, typically taken for 14 days. No over-the-counter remedy or natural approach reliably eliminates the infection on its own, but several complementary strategies can improve your chances of success and make treatment more tolerable.
Why Treatment Choice Matters More Than It Used To
For years, the standard first-line treatment was a combination of two antibiotics (one of them clarithromycin) plus a proton pump inhibitor, a type of medication that sharply reduces stomach acid. This “triple therapy” is still the most commonly prescribed regimen, but antibiotic resistance has made it far less reliable. In strains resistant to clarithromycin, eradication rates drop to roughly 30%. Clarithromycin resistance now exceeds 15% in the majority of countries studied, and international guidelines increasingly recommend against using it as a default first choice unless testing confirms the bacteria are susceptible.
Because of this, many gastroenterologists now favor bismuth-based quadruple therapy as the first-line option. This regimen pairs a proton pump inhibitor with bismuth (the active ingredient in Pepto-Bismol) and two different antibiotics. Its advantage is that it works regardless of clarithromycin resistance, so your doctor doesn’t need to guess whether the bacteria in your stomach will respond. The trade-off is a more complex pill schedule and a higher likelihood of nausea.
What Treatment Feels Like
Whichever regimen you’re prescribed, expect to take multiple pills two to four times a day for about two weeks. Triple therapy tends to cause fewer side effects overall, though many people notice a persistent metallic or unpleasant taste. Quadruple therapy is more likely to cause nausea and diarrhea. Bismuth compounds will also darken your tongue and stool, which looks alarming but is harmless and temporary.
The most important thing you can do is finish every dose. Stopping early because you feel better, or skipping pills because of side effects, is one of the main reasons treatment fails. Simpler twice-daily regimens tend to have better adherence, so if your doctor offers a choice, that’s worth considering.
Probiotics as a Treatment Booster
Adding probiotics during antibiotic treatment can improve eradication rates and reduce side effects, though the benefit depends on how effective your antibiotic regimen already is. A large meta-analysis found that when the antibiotic therapy alone clears the infection less than 60% of the time, adding probiotics boosted success rates by about 28%. When antibiotics were already effective on their own (above 80% eradication), probiotics made no measurable difference.
Not all probiotics are equally useful here. The strains with the strongest evidence for improving eradication include Lactobacillus acidophilus, Lactobacillus casei, Lactobacillus gasseri, and Bifidobacterium infantis. For reducing side effects like diarrhea and nausea, Saccharomyces boulardii stands out. It cut side effects by roughly two-thirds in pooled studies, a much larger reduction than other strains tested. You can find S. boulardii sold specifically as a supplement, and it’s worth asking your doctor about taking it alongside your antibiotics.
Probiotic-rich foods like yogurt, kefir, sauerkraut, and kombucha also contribute beneficial bacteria, though in smaller and less standardized amounts than supplements.
Dietary Changes During Treatment
Your diet won’t cure the infection, but it can reduce stomach irritation while your treatment works. Omega-3 fatty acids from fish oil and olive oil may help reduce gastric inflammation. Cruciferous vegetables like broccoli, cauliflower, and cabbage contain compounds that appear to work against H. pylori directly.
Research from Johns Hopkins tested broccoli sprouts specifically. Infected patients who ate 70 grams of broccoli sprouts daily (about 2.5 ounces) for eight weeks showed reduced markers of both bacterial colonization and stomach inflammation compared to a placebo group. The active compound, called sulforaphane, is powerfully antibacterial against H. pylori in lab settings. The catch: colonization levels returned to their original levels two months after people stopped eating the sprouts. This means broccoli sprouts can suppress the bacteria and calm inflammation, but they don’t replace antibiotics for a permanent cure.
During treatment, minimizing alcohol, coffee, spicy foods, and acidic foods can help keep stomach irritation manageable, especially if you’re already experiencing nausea from the medications.
Confirming the Infection Is Gone
Treatment doesn’t always work on the first try, so follow-up testing is essential. You’ll need to wait at least four weeks after finishing antibiotics before getting retested. If your treatment included bismuth or a proton pump inhibitor (which it almost certainly did), you may need to stop those medications up to two weeks before your follow-up test, since they can produce falsely negative results.
The two most common confirmation tests are the urea breath test and a stool antigen test. Both are noninvasive. If your first round of treatment fails, your doctor will typically switch to a different antibiotic combination for the second attempt, ideally guided by susceptibility testing rather than guesswork.
Preventing Reinfection
H. pylori spreads through contaminated water, food, and close person-to-person contact. Once you’ve successfully cleared the infection, the most practical steps to avoid picking it up again are thorough handwashing (especially before preparing or eating food), drinking clean water, and making sure household members with chronic stomach symptoms get tested. If someone in your home still carries the bacteria, reinfection through shared living spaces is a real possibility.
Keeping cruciferous vegetables as a regular part of your diet after treatment may offer some ongoing protective effect against recolonization, though the evidence for long-term prevention is less definitive than for short-term suppression.