Take a whole lemon and squeeze all it's juice in the biggest coffee mug you have, pour in two tablespoons of REAL maple syrup, (not the fake stuff, the real stuff is just as easy to find, right beside the fake stuff and it tastes even better!) Then take your cayenne pepper and put two generous dashes in. Fill the rest of the mug with boiling water, sip and FEEL yourself immediately get better! Your sinuses will clear out, your head clears up, your throat calms down. I don't know why it works so well. It is also an excellent way to fight off becoming sick. Something about the maple syrup and lemon and pepper mixing to create some kind of magical reaction. Don't microwave it though, it kills whatever it is that's going on.
If you don't have all that the best thing is peppers, especially that cayenne. Jon has a real bad cold, so last night I made stone soup (basically beef broth with some potatoes, onions, and celery) I put a bunch of cayenne pepper in it. So much so that I who am not sick could barely eat it, Jon lapped it up, I think because he could finally taste something, and today he feels great!!