You seem to have done everything that is needed for a duodenal ulcer
. However the most important aspect of treating a duodenal ulcer is not drugs but diet modification. You need to stay off spicy foods for a while. Drink lots of water but avoid drinking water 30 mins before or after food. Avoid drinking alcohol. Stop smoking
. I guess if you follow this kind of diet you will improve but you have to stick to this diet even after you recover.
Hope you get well soon.