Health issues can hinder you from being happy and productive. At the first sign of a cold, increase your vitamin c intake by drinking organic fresh-squeezed grapefruit and orange juice. Drink immune-boosting herb teas that include echinacea, ginger, catnip, goldenseal, and elderberry. Vegetable broth with garlic, onion, lemon juice and cayenne pepper will sooth cold symptoms and give you added pep.