What Causes Sore Throats?

Numerous factors can lead to throat pain, and each cause requires appropriate treatment.

Dr. Gerry-Ann Blumberg, Family Medicine Specialist

A woman touches her throat

There are many reasons for sore throats, including bacteria, viruses, streptococcal infection, other allergies, smoking, polluted air, and alcohol consumption. The treatment for throat pain varies depending on its source and underlying cause.

Pharyngitis

Pharyngitis occurs when the tonsils at the back of the throat become inflamed, leading to a painful throat. This inflammation can be primarily viral but may also result from bacterial infections.
Symptoms of pharyngitis include:

  • Throat pain
  • Fever
  • Headache
  • Nausea
  • White spots on the tonsils or in the throat
  • Difficulty swallowing
  • Redness in the throat
  • Tender lymph nodes in the neck and under the jaw

Streptococcal Throat Infection

Streptococcus is a type of bacteria that, when present in the throat, causes infection and pain. It is not always easy to distinguish streptococcal throat infection from other causes of throat pain. It is crucial to consult a doctor and treat streptococcal throat infection to prevent complications, especially in the heart.
Diagnosing streptococcal throat infection is done through throat swabs.

Infectious Mononucleosis (Mono)

Infectious mononucleosis is caused by either the CMV or EBV viruses. It is essential to note that CMV infection can harm fetuses if active during pregnancy.
Symptoms of infectious mononucleosis include:

  • Prolonged throat pain, up to four weeks
  • Fever
  • Chills
  • Headache
  • Fatigue
  • Swollen lymph nodes in the neck, under the jaw, and in the armpits

Diagnosis is made through blood tests, with results available after several days. Recommended treatment includes rest and avoiding strenuous activities. You can also take pain and fever relievers.

Allergic Rhinitis (Hay Fever)

Allergic rhinitis can also cause throat pain when nasal discharge accumulates in the throat. Usually, during hay fever outbreaks, nasal discharge is clear.
Treatment for allergic rhinitis can involve antiallergic medications or addressing the congestion. Antibiotics are not necessary.

How are Sore Throats Treated?

The treatment for sore throats depends on its underlying cause:

  • If it is caused by a bacterial infection, antibiotics are prescribed.
  • If it is viral, antibiotics are not needed.
  • In all cases, it is essential to allow the body time to fight off the infection, with an average illness duration of about ten days or more.
  • If a bacterial infection is diagnosed, completing a ten-day course of antibiotics is crucial to prevent complications.

How to Alleviate Sore Throats?

You can take over-the-counter pain relievers, drink plenty of fluids, including warm tea with honey or lemon, suck on lozenges or throat drops, gargle with warm salt water (a teaspoon of salt in a cup of water), and use a humidifier.

Is Surgery to Remove Tonsils Necessary?

Most cases do not require tonsil removal surgery. Only in cases of recurrent bacterial infections or when the tonsils are extremely enlarged and interfere with breathing should the possibility be considered in consultation with the treating physician.

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