Laryngitis is an inflammation of the voice box (larynx). This swelling causes distortion of the sounds and makes the voice raspy or hoarse.

Causes of laryngitis may include upper respiratory infection from the common cold, overuse of the vocal cords from talking, singing, or shouting, gastroesophageal reflux, smoking or the exposure to polluted air.

Symptoms of laryngitis include hoarseness, loss of voice, sore throat, congestion in the throat and coughing. Laryngitis is not often serious and in most cases resolves without treatment in about a week.

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