Crazy home remedy, but this is what I did with my first. I had crazy bad heartburn, and tums did nothing (I was being super weird about taking medication while pregnant with him) so I took a tsp of baking soda and warm water. Freaking disgusting but worked every time. Huge belch a few minutes later and felt instantly better. Sometimes if it got real bad, id do a full tbsp, but works well
I take retadine tablets morning and night. You need a script from your doctor. I've tried all the other OTC stuff and NOTHING works. Ask your doctor about it. It's a cat A I believe