What causes Laryngitis?
The voice box (larynx) is located at the top of the airway to the lungs (trachea). The larynx contains the vocal cords. When the vocal cords become inflamed or infected, they swell. This can cause hoarseness, and may sometimes block the airway.
The most common form of laryngitis is an infection caused by a virus. It may also be caused by:
Allergies Bacterial infection Bronchitis Common cold Flu Injury Irritants and chemicals Pneumonia
Laryngitis often occurs with an upper respiratory infection.
Several forms of laryngitis occur in children that can lead to dangerous or fatal respiratory blockage. These forms include:
Croup Epiglottitis </s>