The back-to-school season can be stressful. It also marks the beginning of the cold and flu season, as well as the peak fall allergy season. Allergies and illness symptoms can look similar, however, illnesses are contagious while allergies are not. Illnesses can spread quickly in a school environment, especially among young children. Viral infections like colds may seem like a mild issue, however, a sick child can spread their infection to their entire class in ...