![]() To prevent laryngitis caused by straining the voice, avoid shouting or singing for extended periods. There is no way to prevent laryngitis caused by an infection. Laryngitis usually clears up within a few days to a week. In either case, if the doctor suspects a bacterial infection, he or she may ask you to cough up some mucous (phlegm, sputum) and have it analyzed in a laboratory. The doctor passes the scope through the nose into the back of the throat. Another way to view the vocal cords is with a flexible fiberoptic scope. The feeling that you need to clear your throatÄoctors examine vocal cords using an instrument with a light and a mirror placed in the back of the throat, which allows the doctor to see the vocal cords reflected in the mirror. And laryngitis can occur when the vocal cords are inflamed by straining the voice, such as when yelling or singing very hard. Bacterial infections of the breathing tubes (bronchitis) or lung (pneumonia) also can infect the larynx and cause laryngitis. Hoarseness tends to appear later in the illness, after the sore throat, sneezing, coughing and other symptoms. Laryngitis often occurs along with a viral infection, such as a cold or flu. Depending on the degree of swelling, the voice may become mildly hoarse, turn into a croak or whisper or even disappear temporarily. ![]() Laryngitis makes the vocal cords swell, changing the way they vibrate and the sound of the voice. Laryngitis is an inflammation or infection of the voice box (larynx) and the vocal cords it contains. ![]()
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