Quoting susanesque:" You're due on DD's birthday! Oh, and also, one way to tell is by snot color (eew). If it's bright ... [snip!] ... my mom swears by those Neti pot things. Just be sure to use distilled water & follow the directions or they can be unsafe."
They don't sell neti pots where we are stationed, but I heard mixed stories about it. Some people say to buy the saline solution, not just distilled and never use tap.
What works for me are those face warmer things, even more water for drinking, mucinex for chest congestion from all the runniness and tea bags on the eyes.