Biopsies or tissue samples can be taken through the tube if suspicious areas are seen. If the underlying cause is corrected, there are usually few or no long-term effects. Cancer of the larynx may result in death if the cancer spreads. There are generally no risks to others. Infectious causes of laryngitis may be contagious.
Treatment depends on the underlying cause.
Plenty of fluids and humidified air often help relieve symptoms. The person should try to limit use of the voice for a few days. Smoking and second-hand smoke should be avoided. Medications to break up mucus and treat infections may be given. Throat lozenges and gargling can be helpful.