The front part of the neck below the jaw may be noticeably swollen on the affected side. Penicillin is given intravenously at first and by mouth later. The most common cause is a viral infection of the upper airways, such as the common cold. Usually, an unnatural change of voice, such as hoarseness or even loss of voice, is the most noticeable symptom. The throat may tickle or feel raw, and a person may have a constant urge to clear the throat.
Symptoms vary with the severity of the inflammation.
Using a small angled mirror such as those used by dentists, a doctor sees a mild to marked reddening of the lining of the larynx, which also may be swollen. Treatment of viral laryngitis depends on the symptoms. Resting the voice by not speaking, or speaking only in a whisper, and inhaling steam relieve symptoms and help the sore areas heal. Treating bronchitis, if present, may improve the laryngitis. An antibiotic given by mouth is helpful when the infection is caused by bacteria.