Vitamin C improves your immune system, so lots of fruit juice. Lots and lots of fruit juice. It will help you get better faster.

As for soothing your throat, any warm drink will probably suffice. A fruity tea would probably help a lot.

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Happy Christmas/Hannukah/Kwanzaa!

"The last time I was this scared, I had to actually fight a Dark Lord in order to make the world safe for wizards." - Radar, "Paper Towns" by John Green