I have a stuffy head and nose. In China, the Dominican Republic, and probably lots of other places, ginger and honey are considered good for a cold. I hope it works!
2″ fresh ginger, sliced thinly
2 C water
2 T lime (or lemon) juice
3 T honey
Boil ginger in the water for 5 minutes. Strain into a large mug and stir in lime juice and honey. The ginger can be used many times again.