Sunny days of summer are soon to be replaced by cooler temperatures, rainy afternoons, and cozy weekends indoors. Unfortunately, the change in seasons also brings the return of cold and flu season. The common cold and influenza, or the flu, are among the most common viral respiratory illnesses, affecting the nose, throat, and airways. These viruses can spread easily when an infected person coughs or sneezes, releasing respiratory droplets into the air. Those droplets can ...