I found this home remedy in Vasant Lad's "The Complete Book of Ayurveda Home Remedies". My whole family, including my 4 year old grand-daughter, have benefitted tremendously from this. It has become a "must have" product in everyone's kitchen.
3 parts cinnamon
2 parts powdered dry ginger
and a touch of cardamom powder.
In 1/2 glass warm water, put 1/4 - 1/2 teaspoon of this mixture and 1/4 - 1/2 teaspoon honey.
Provides immediate relief from cold, flu, cough, congestion.