Whenever one of the singers got sick while I was on tour in China our assistant stage manager would give us this stuff & it worked like a charm! We’d guzzle this stuff if we had to sing while sick (though I’m sure we exceeded the recommended dose!).
So……back in Canada I freaked when I found this stuff in Toronto’s China Town! The Chinese pharmacies and even some grocery stores carry it & it’s a dream! Advertised as a “Herbal Cough Syrup” this stuff is great, doesn’t taste awful, and works like a charm on sore throats & coughs.