Cure the Head Cold

Get adequate rest: Make sure you get at least seven to nine hours of sleep a night, depending on the amount your body requires. If you're not sleeping well, your immune system produces fewer of the natural-killer cells needed to destroy cells infected with the cold virus.

Eat well: Make sure you're getting foods that give you plenty of immune-boosting antioxidant vitamins and minerals - fruits, vegetables, whole grains, legumes, nuts and seeds. Garlic, onions, and ginger are especially good for fighting colds.
-Dr. Andrew Weil