A couple hints for fighting off colds....
Drink honey and lemon juice in warm water (I use about a tablespoon of each...DH likes less lemon juice).
For a sore throat, gargle with warm salt water.
Eat spicy foods to clear out your sinuses.
Soak your toothbrush in peroxide to clean it.
Drink LOTS of water, and avoid milk.
Get plenty of sunshine!
Drink freshly-squeezed orange juice.
Make chicken soup with lots of fresh vegetables.