You can experiment with OTC-versions of prescriptioned medications to reduce stomach acid. Acid-reducer medications such as
Prilosec, Nexium,
Zantac, Prevacid, and others are available at any pharmacy. I have GERT, and I had an ulcer. I take one Prilosec, 20-mg, a day with no pain. Prilosec OTC, is 10-mg, is a good start. Take two if you later think you need it.. If I take two Prilosec, 20-mg, I get dry-mouth, so I only need one for 24 hours.