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Sore Throat Causes: Causes, Symptoms And Treatment Of Sore Throat

Learn about sore throat causes, symptoms, and effective treatments. Understand what triggers throat pain and explore remedies to relieve discomfort and promote faster recovery. Read more for complete insights!

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Written by Dr Sonia Bhatt

Last updated on 11th Mar, 2025

Sore throat is a medical condition most commonly caused by allergies or bacterial infections. People of every age group and gender suffer from this ailment during seasonal changes and nutritional deficiencies. While home remedies can effectively deal with a sore throat, in many cases, like strep throat, prescribed medications are required. Moreover, prolonged bouts of sore throat can affect productivity, impact the standard of life, and lead to other chronic conditions. Therefore, understanding sore throat causes is necessary to take preventive action and get the right treatment.

Common Causes of Sore Throat

Some of the common causes of sore throat are:

  • Viral Infections: Viruses are pathogens that can cause sore throats. Some of the most common ones are influenza, adenovirus, and rhinovirus. These viruses are known to weaken the immune systems. The incubation period for each virus will vary according to its type. However, these pathogens have a short lifecycle and can be treated with over-the-counter medicine as suggested by the doctor. 
  • Bacterial Infections: Group A Streptococcus is one of the most common bacteria causing sore throat in several countries; it is commonly referred to as strep throat. There are other bacteria leading to infection in the throat. The body's immune system is rendered weak due to the infection, which further leads to susceptibility to different diseases. Doctors will prescribe antibiotics to stop the strep infection from spreading to other organs.
  • Fungal Infections: While rare, a few sore throat cases are caused due to fungal infections. This primarily happens due to the body's weak immune system and negative triggers in the presence of allergens and fungi spores.

Lesser-known common causes

On the other hand, some of the lesser-known causes of sore throat are:

  • Allergies: People who have severe allergies often suffer from inflammations in the respiratory tract due to inhalation of allergens and allergy-causing spores. These can be dust, pollens, certain chemicals in the air, and so on. A sore throat caused by respiratory allergies is often accompanied by itchiness, pain, and discomfort.
  • Gastroesophageal Reflux Disease (GERD): Many people with GERD also have sore throats. This is caused by the interaction between gastrointestinal juices and acids and the respiratory tract lining. The acid can harm the respiratory tract and cause a burning sensation in the throat. Treating the root cause of GERD helps with this type of sore throat.
  • Smoking and Tobacco Use: Prolonged use of tobacco and nicotine also leads to sore throats. That's because these substances often trigger the body's immune system and lead to inflammations and red patches in the epithelial lining of the throat region.

Infectious Causes

Sore throat is highly contagious and often spreads through:

  • Respiratory air droplets
  • Direct contact with the infected person
  • Sharing personal items like utensils, toothbrushes, and towels
  • The preventive measures of the same include:
  • Maintaining personal hygiene
  • Avoiding close contact with patients
  • Wearing mask outside and near affected individuals
  • Boosting immunity through food and exercise
  • Vaccination

Risk Factors

The risk factors associated with sore throat include:

  • Environmental Exposures: Exposure to pollutants, especially airborne particles, dust, smog, soot, and others, is also associated with sore throat. People living in extremely dry weather conditions are likelier to suffer from this illness due to respiratory tract inflammation and dehydration.
  • Lifestyle Factors: Lifestyle factors such as lack of sleep, unhealthy eating habits (consumption of packaged foods and drinks), prolonged use of intoxicants such as drugs, lack of proper hydration, etc., also increase the risk of a sore throat.
  • Age and Immune System Strength: Children, geriatrics, and people with weak immunity are more susceptible to sore throats. A weak immune system does not have the strength to fight pathogens and allergens, thereby leading to sore throats. 

Symptoms and Signs 

Here is a table outlining the symptoms and signs of sore throat:

Symptom

Viral Sore Throat

Bacterial Sore Throat

Onset

Gradual onset

Sudden onset of the pain

Fever

Low-grade or absent

Medium to high

Cough

Common 

Seldom 

Tonsil gland condition

Minute redness

Prominent redness with white patches

Runny nose

Prominent

Rare 

Swelling in the lymph nodes

Almost absent 

High inflammation rate

Rashes

Absent

Present as scarlet fever rash

Body fatigue

Common 

Rare 

When to See a Doctor?

  • You should consult with a doctor if,
  • The symptoms have not subsided after a couple of days
  • The condition continues to persist despite precautions and some home remedies
  • Sore throat is accompanied by high fever with chills and severe tremors
  • There is excessive pain in swallowing

Complications

If left untreated, sore throat can lead to potential health complications, such as:

  1. Sinus infection
  2. Tonsillitis
  3. Bronchitis
  4. Otitis media or ear infection
  5. Dehydration
  6. Chronic conditions like COPD

Sore throat also leads to reduced quality of daily life, like:

  1. Difficulty in eating food and drinking water
  2. Consistent discomfort
  3. Runny nose in viral infections
  4. Mild to severe fever

Diagnosis

While studying the symptoms of sore throat, doctors will:

  1. Consider the medical history of the patient
  2. Examine the patient's throat and lungs to check for symptoms to determine the cause of the infection
  3. Check for swollen tonsil glands, scarlet fever rash, tender lymph nodes, and many more.
  4. If the symptoms persist despite medication, tests such as throat culture may be recommended to know the exact cause of sore throats and accurately stage the disease for further treatment.

Treatment Options

A few home remedies that can help alleviate the discomfort and pain associated with sore throat are:

  1. Gargling with lukewarm water and salt
  2. Drinking warm water, soups and other liquid-based foods like khichdi
  3. Sucking on a piece of ginger or licorice
  4. Drinking chamomile and peppermint tea

Doctors will prescribe medicines such as antibiotics, anti-allergic, and more to address the root cause of a sore throat. It is important to remember that a sore throat is usually a symptom of another disease or disorder, and a medical practitioner is the right person to help identify the reason for a sore throat.

Prevention

While travelling and coming in contact with an infected person, sore throat can be prevented by: 

  1. Washing hands frequently and thoroughly
  2. Making sure the infected person covers their mouth while coughing or sneezing
  3. Wearing masks in the presence of others
  4. Regularly disinfecting surfaces which are handled by multiple people
  5. Avoid shaking hands with infected people

Taking proper vaccinations, especially for Streptococcus and influenza, will help reduce the risk of suffering from sore throats.

Conclusion

A sore throat can result from various causes, ranging from infections to environmental factors. Recognizing the symptoms early and seeking appropriate treatment can help relieve discomfort and prevent complications. Preventive measures, such as maintaining good hygiene and staying hydrated, play a crucial role in reducing the risk of sore throat. If symptoms persist or worsen, consulting a healthcare professional is essential to identify the underlying cause. With timely care and proper management, you can ensure a quicker recovery and better throat health.

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Consult Top ENT Specialists

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Bengaluru

Smruthi ENT & Multi Speciality Centre, Bengaluru

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Dr. Nitin Mittal, Ent Specialist

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Kolkata

HOLISTIC ENT AND DENTAL SUPERSPECIALITY CLINIC, Kolkata

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