I've got a sore throat this week, so I'm gonna try this remedy, found--where else?-- in the blogosphere!
The first time a friend suggested heating up a can of Coke I suggested maybe he was the one who was sick. I was too weak to argue though so I watched him peel and mince up a few inches of ginger root and stir them into the fizzing brown liquid warming in a pot on the stove. The liquid hissed and foamed. He turned off the flame and immediately poured the contents of the pot into a mug. The cup fizzed some more and the ginger pieces obligingly floated to the surface.
H/t Andy Roth.