Laryngitis is an inflammation of the larynx, the "voice box" that contains the vocal cords in the upper portion of the neck. Laryngitis occurs in two forms, acute and chronic. Acute laryngitis typically is a brief illness producing hoarseness and a sore throat. In most cases, an upper respiratory tract infection causes it. Chronic laryngitis is a more persistent disorder that produces lingering hoarseness and other voice changes. It usually is painless and has no significant sign of infection.
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