I believe you mean helicobacter pylori...it's a bacterium that causes ulcers, among other things. Your husband sounds as if he might indeed have, if not an ulcer, at the least gastritis, which is similar.
The usual treatment for h. pylori is an antibiotic, coupled with antacid treatment, for a period of approximately 2-6 weeks (at least 2-4 weeks with the antibiotic and up to six weeks with the antacid).
If your husband doesn't show signs of improvement after a few weeks, it's possible that there is something else going on in addition to the h. pylori. He should definitely go back to the doctor. There are other bacteria that could be causing his symptoms, as well as intestinal parasites such as giardia, etc.