Hot steam showers are often helpful in alleviating symptoms of upper respiratory infection with cough . It can ease the nasal congestion and calm the coughing down. Due to these beneficial effects and the fact that dry airways can make a cough worse, a humidifier is a helpful device to have in a room. Humidifier use when the air is dry during the winter can also help prevent upper respiratory infections from happening as well as minimize nosebleeds . Keep in mind that although humidi…