Shanghai Throat - Nothing New

Oddly I saw this advert from 1937 the other day when trawling through a bunch of old advertising from Shanghai. Then I walked into a few meetings in the last couple of days here in Shanghai where people have moaned about sore throats. The change in the weather?; pollution?; too many fake Marlboros? - who knows. What I do know is that (surprise, surprise) sore throats are nothing new. Not sure where you'd get a pack of Allenbury's Pastilles now though.