In fact, this old wives' tale doesn't have a hint of truth to it. Only one thing is certain: Your body needs proper nutrition at all times, but especially during cold and flu season. The typical cause of fever is the onset of infection, so you need to have plenty of liquids on hand to prevent dehydration. Try chicken soup and a glass of water for a nourishing, easily digestible meal.
Proper nutrition and a safe, trusted cold or flu medicine can keep you going throughout your busy day.