I have not read all the replies, but a little bit of vinegar with a little of baking soda diluted with some water to make it "drinkable" works well every time.  We try to avoid medicines as well.   
I have read about some people drinking pickle juice, too.  I have not tried that "remedy," but I have read that reducing the acid in your stomach (with meds) only causes it to eventually become worse.  I just cannot recall the reason why right now...so we add acid through the above "concoction."  
Best wishes & I hope you get better from this problem quickly.