There are a lot of neat remedies out there but this topic made me think of something people used to do in the past. I've heard that mixing alcohol with syrup was how they used to deal with sickness. I've even had people suggest that to me. It sure could help you relax and stay down for a while. It might be an old wive's tale.
You mean like Vicks 44 or Robitussin?
I really like the Tylenol Flu packets (they have day and night) - combines the heat/steam of tea with the medicine you need to feel better.
For congestion, I always take mucinex - just very strong expectorant that makes a huge difference if you're experiencing sinus headaches.