Just keep drinking as much as you can, and try to eat as much protein as you can when you eat so you don't lose muscle during this time, okay? Take gentle care of yourself and don't worry about staying OP too much, especially with meds like cough drops, syrup, and such.
If you can stomach milk, make some hot cocoa: heat 1 cup of milk in the micro (about 3 mins., 30 sec), meanwhile, put 4 tsp of Hershey's cocoa in a mug. Stir in about 2 Tbsp (I like 2.5 Tbsp) of a SF syrup or of splenda. Add a pinch of salt. Stir this until well combined, especially if you used syrup. When the milk is heated, mix it into the mug and add a dash of vanilla extract. Heat again if it got cold, and enjoy. I drink this every night and find it very comforting. It'll add a little protein to your diet, too.