Once you have the first inkling that you are getting sick – a scratchy throat, fatigue, or the sniffles – immediately increase your fluid intake. Dehydration can quickly result from the mild fever and decreased appetite that often accompany the common cold, and will accentuate many of the typical symptoms, which include dizziness, fatigue, and muscle cramps. To fight back, drink plenty of water. Aim for at least 60 ounces of fluids spread out through the day. If you prefer something with a little flavor, then try some green tea, which is a good option since it contains many natural healthy ingredients.