Great King Bowser said:
Another vote for dissolved salt water.
I'm pretty sure that's the only kind
-- unless you empty an entire can of it into a glass of water, in which case I doubt you'd be able to drink it or even gargle with it.
Hot tea, hot water, hot chocolate, hot women...whatever. It'll all help.
Actually, whenever I or anyone else in my family have a red throat, the doctor says to avoid drinking liquids that are too hot or cold. So take that for what it's worth...
I'm not entirely sure if a "red throat" (i.e., inflamed tissue) is the same as a "sore throat"-- for instance, it might be different from a throat that became sore through too much screaming/singing or something, so perhaps the remedies and treatments are different.