Viral Pharyngitis

(Viral Sore Throat)

Definition

Viral pharyngitis is a sore, inflamed throat.

Sore Throat Due to Inflammation

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Causes

Viral pharyngitis is caused by a viral infection such as a common cold or the flu.

Risk Factors

Viral pharyngitis is more common in children and adolescents. Other things that may raise the risk are:

  • Living or working in crowded places
  • Not washing hands enough
  • Smoking
  • Allergies
  • Lowered ability to fight infection due to:

Symptoms

Symptoms of viral pharyngitis may be:

  • Sore, red, swollen throat
  • Problems swallowing
  • Swollen lymph nodes in the neck and behind the ears
  • Lack of hunger
  • Being tired
  • Rashes

Diagnosis

The doctor will ask about symptoms and past health. A physical exam will be done. The diagnosis may be based on the symptoms and a throat exam. The throat may be swabbed. This is to rule out other causes, such as strep throat.

Treatment

There are no specific treatments to cure viral pharyngitis. Most of these infections go away on their own in about a week. Treatments may help ease symptoms. Options may be:

  • Over the counter pain medicine—to ease discomfort
  • Warm salt water gargles—to ease sore throat
  • Throat lozenges
  • Warm drinks, soups, or cold fluids
  • A cool-mist humidifier—to soothe a dry or stuffy nose

Prevention

The risk of viral pharyngitis may be reduced by:

  • Washing hands frequently
  • Not sharing eating utensils or drinking glasses with someone who has a sore throat
  • Avoiding people who have a sore throat

RESOURCES:

American Academy of Otolaryngology—Head and Neck Surgery
http://www.entnet.org
Family Doctor—American Academy of Family Physicians
https://www.familydoctor.org

CANADIAN RESOURCES:

The College of Family Physicians of Canada
http://www.cfpc.ca

References:

Frye R, Bailey J, Blevins AE. Clinical inquiries. Which treatments provide the most relief for pharyngitis pain? J Fam Pract. 2011;60(5):293-294.
Murray RC, Chennupati SK. Chronic streptococcal and non-streptococcal pharyngitis. Infect Discord Drug Targets. 2012;12(4):281-285.
Pharyngitis - Approach to the Patient. EBSCO DynaMed website. Available at: https://www.dynamed.com/approach-to/pharyngitis-approach-to-the-patient-25. Accessed April 6, 2021.
Sore throats. American Academy of Otolaryngology—Head and Neck Surgery website. Available at:
...(Click grey area to select URL)
Accessed April 6, 2021.
Last reviewed April 2021 by David L. Horn, MD, FACP
Last Updated: 4/6/2021

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