I used to get unbearable reflux, which caused Barretts syndrome (mild, fortunately). A Hiatus Hernia caused it, though I went through the mill with treatment for h.Pylori before I found out that it had nothing to do with the reflux. I was on Omeprazole, but the dose kept creeping up, so in the end, I opted for a hernia repair. Now I don't take any medication, and don't get reflux anymore.
I would highly recommend that he sees a doc to find the cause, if I had left mine, the Barretts may have ended up a lot worse.