Re: sore throat/ Stomach Acid and old folks
If it is reflux, and once you have it under control (but I might be tempted to just do a trial for 30 days with acid blockers to see if there was any throat relief to rule out acid reflux) an excellent formula for throat/voice/lung congestion disorders is this:
http://www.dragonherbs.com/prodinfo.asp?number=252
It is sort of expensive at $18 for 100 capsules, but it is a stellar formula and works great.
Or, you could make your own similar formula for much less from information on this page.
http://www.itmonline.org/arts/throat.htm
"The throat is subject to a number of disorders including infections, hoarseness, vocal cord polyps and nodules, irritation (sometimes the result of gastric reflux and postnasal drip), and cancer. In Chinese medical texts, throat (Chinese: yan or hou) disorders are mentioned secondarily to other syndromes, such as common cold or a feverish disease, but are not a focus of specific discourse. Therefore, information about treatments for throat disorders must be culled from sparse sources, including medical reports from specialists and recommendations from texts devoted to modern medical specialties, such as otolaryngology, each providing some clues that may be useful in understanding the treatment principles."
There are several Chinese formulas in here, including the one that Golden Voice is based on.