usually it wouldn't be from bacterial infection.
gasX only helps gas
I would try stomach acid reducers like maalox, mylanta, zantac, tagamet to help reduce stomach acid to see if that helps
and also avoid spicy foods, alcohol, tomato sauces, fried foods, oily foods, large meals, black pepper for now.
don't take the antibiotics on an empty stomach.
let me know if you have other questions.
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