Viral pharyngitis is inflammation of the pharynx (the part of the throat between the tonsils and the larynx).
Causes, incidence, and risk factors:
Viral pharyngitis is the most common cause of a sore throat.
Pharyngitis may occur as part of a viral infection that also involves other organ systems, such as the lungs or bowel.
Signs and tests:
Usually the health care provider makes a diagnosis by examining the throat. A throat swab culture will be negative for bacterial causes of sore throat (such as group A streptococcus).
There is no specific treatment for viral pharyngitis. You can relieve symptoms by gargling with warm salt water (one half-teaspoon of salt in a glass of warm water) several times a day and taking anti-inflammatory drugs or medications, such as acetaminophen, to control fever. Excessive use of anti-inflammatory lozenges or sprays may make a sore throat worse.
It is important to avoid antibiotics when a sore throat is due to a viral infection. The antibiotics will not help. Using them to treat viral infections helps strengthen bacteria to become resistant to antibiotics.
In some sore throats (such as infectious mononucleosis ), the lymph nodes in the neck may become extremely swollen. They may be treated with anti-inflammatory drugs, such as prednisone.
Symptoms usually go away within a week to 10 days.
Complications of viral pharyngitis are extremely uncommon.
Calling your health care provider:
Call for an appointment with your health care provider if symptoms last longer than expected or do not improve with self-care. Always seek medical care if you have a sore throat and have extreme discomfort or difficulty swallowing or breathing.
Most cases are not preventable, because the viruses and bacteria that cause sore throats are commonly found in the environment. However, always wash your hands after contact with a person who has a sore throat. Avoid kissing or sharing cups and eating utensils with sick individuals.
Hayden GF, Turner RB. Acute Pharyngitis. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 378.
Jenson HB. Epstein-Barr Virus. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 251.
|Review Date: 8/12/2008|
Reviewed By: Linda Vorvick, MD, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997-
A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.