Laryngitis is an inflammation of the larynx. Your larynx is more commonly known as your voice box. The condition occurs as a result of developing an infection, irritation, or simply overuse of the vocal cords. There vocal cords are found inside the larynx. The vocal cords normally open and close smoothly which produces our normal talking voices. However, when you have laryngitis, the vocal cords become irritated and inflamed. As a result, the vocal cords swell and this produces an abnormal talking voice which sounds hoarse. In severe cases of the condition, you may lose your voice completely.