It's Flu Season, and the only thing that seems to really make me feel better when I have a bona fide cold is Lemon-Ginger Tea with Honey. Crisp and spicy, deeply warming, soothing and fragrant, a cup of this is an amazing boon at any time, but especially when you feel yourself fighting off the germs of winter.
Grate fresh ginger root into a diffuser (or straight into your mug if you don't have a diffuser handy -- it will still work, but you might get some ginger bits in your tea, which is still fine). Pour boiling water over the ginger. Squeeze some lemon juice into the mug and add a healthy dollop of honey (my favorite these days is thistle honey, but any kind will work, with local being especially beneficial to the immune system). Let steep for a few minutes or longer. Sip.