Treating H Pylori is generally relatively safe. The antibiotics in the PrevPak, amoxicillin and clarithromycin, are generally well tolerated with a low risk of side effects. That said, it does not have a 100 percent eradication rate, and like any drugs, no one can guarantee the absence of complications.
If the symptoms are continuing, however, then I would consider treatment, since H Pylori are indeed associated with inflammation and ulcer formation. If another opinion is warranted, you can obtain a second opinion at a major academic medical center.
If the nausea continues, other tests can be considered, including, imaging of the abdomen as well as more specialized tests, like a gastric emptying scan or an esophageal motility study.
These options can be discussed with your personal physician.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin Pho, M.D.
KevinMD.com
Twitter.com/kevinmd