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The therapeutic dose of zantac is 150mg twice a day, so by taking only one tablet daily then you are not taking enough to reduce acid secretion. Changing to omeprazole (losec) 20mg once daily may show more benefit and add in Gaviscon (or other alginate) liquid to coat the esophagus.
Cutting out caffeine and wine completely can help, but if there is an underlying hiatus hernia then you may need surgical repair to completely eliminate the problem.
Raise the head of the bed at night to avoid reflux which can irritate the esophagus, and avoid tight fitting clothes around the waist.
In terms of Chinese options, Chinese herbal medication is a specialized field and not always subject to same testing as present in UK and US medication. You would be advised to see a local practitioner for a full consultation if that was the route you wished.
Peppermint tea is very good for wind and cramps but less so for heartburn.