I am drinking vast amounts of tea... 
Lemon, honey and ginger. Lemon for the vit C, honey to soothe the throat and ginger for the antibactrial properties it contains. I zest three lemons, squeeze them, grate an inch of ginger, half a cinammon stick and a few cloves, boil with water in a large pot and drink all day, just keep topping it up with water. Manuka honey is best but pricey, stir in to taste once it is in your mug.