Disease: Pharyngitis

What Is Pharyngitis?

A sore throat is a common symptom of several different diseases.

Pharyngitis is a sore throat caused by inflammation of the back of the throat (also called the pharynx).

One of the most common reasons people visit their doctor, pharyngitis can make it painful to swallow, and you may experience soreness, discomfort, pain, or scratchiness in the throat.

Pharyngitis is often present because of another illness, such as a cold, the flu, or mononucleosis ("mono"), and most sore throats subside within a week or less.

Causes of Pharyngitis

Pharyngitis is caused by swelling in the back of the throat between the tonsils and the larynx.

Most sore throats are occur during colder months and are caused by viral infections such as the common cold, flu, mono, measles, chickenpox, and croup.

However, bacteria such as Group A Strep, whooping cough (caused by the bacteria Bordetella pertussis), and diphtheria can sometimes cause pharyngitis.

The illness often spreads between people by breathing in bacteria or viruses that are spread in the air, or by touching a surface with germs on it.

Other causes of a sore throat may include allergies, dryness, irritants, straining your throat muscles, gastroesophageal reflux disease (GERD), HIV infection, or tumors of the throat, tongue, or larynx (voice box).

Risk Factors for Pharyngitis

Risk factors for pharyngitis include the following:

  • Cold and flu seasons
  • Having close contact with someone who has a sore throat or cold
  • Smoking or exposure to secondhand smoke
  • Frequent sinus infections
  • Allergies
  • Attending daycare

Symptoms of Pharyngitis

Symptoms of pharyngitis may include the following:

  • Sore throat
  • Fever
  • Headache
  • Joint pain and muscle aches
  • Skin rashes
  • Swollen lymph glands in the neck

Depending on what illness is causing the sore throat, symptoms can vary, as in the following:

Sore throat with cold:

  • Sneezing
  • Cough
  • A low fever (less than 102 degrees F)
  • Mild headache

Sore throat with flu:

  • Fatigue
  • Body aches
  • Chills
  • Fever higher than 102 degrees F

Sore throat with mononucleosis:

  • Enlarged lymph nodes in neck and armpits
  • Swollen tonsils
  • Headache
  • Loss of appetite
  • Swollen spleen
  • Liver inflammation

Diagnosis of Pharyngitis

Your doctor will most likely start by giving you a physical exam that may involve checking your temperature; looking at your throat, ears, and nose with a lighted instrument; checking your neck for swollen glands (lymph nodes); and listening to your breathing with a stethoscope.

Your healthcare provider may also take a throat culture or do a rapid strep test by taking a swab from your throat to be checked for the bacteria Group A Strep (the cause of strep throat). Some clinics can get results right away while others need to send off the sample to a lab for testing.

If the rapid, in-clinic test comes back positive, then you almost certainly have a bacterial infection. If the test comes back negative, then you likely have a viral infection.

A blood test might be done to determine whether an infection is more likely caused by a bacterial or viral agent.

If your doctor suspects your sore throat is related to an allergy, you may be referred to an allergist for additional tests, or if you experience chronic or frequent sore throats you may be referred to an otolaryngologist (ear, nose, and throat doctor).

Medications for Pharyngitis

If your sore throat is caused by a virus, antibiotics won't help and it will go away on its own within five to seven days.

However, antibiotics can help if your sore throat is caused by the following:

  • Strep throat
  • Chlamydia or gonorrhea

If you have the flu, antiviral medicines may be effective.

Home Remedies for Pharyngitis

The following remedies may help soothe a sore throat:

  • Getting rest
  • Avoiding alcohol
  • Quit smoking
  • Drinking warm liquids, such as lemon tea or tea with honey
  • Gargling with warm salt water (1/2 tsp of salt in 1 cup of water) throughout the day
  • Drinking cold liquids or sucking on fruit-flavored ice pops
  • Sucking on hard candies or throat lozenges (for adults only)
  • Running a cool-mist vaporizer or humidifier
  • Taking over-the-counter pain medications, such as acetaminophen (Tylenol) or ibuprofen (Advil, Motrin). Children under 19 should not take aspirin.

Sources:

  • Pharyngitis - sore throat; National Institutes of Health
  • Pharyngitis; University of Maryland Medical Center
  • Sore throat; Mayo Clinic

What Is the Pharynx?

Pharyngitis and pharyngeal cancer are two conditions that can affect your pharynx.

The pharynx, also known as the throat, is a hollow, muscular tube lined by mucous membrane. It runs from the back of the nose down into the neck, ending at the top of the windpipe and esophagus.

It contains three sections: the nasopharynx, the oropharynx, and the laryngopharynx, also called the hypopharynx.

The pharynx is part of the digestive system, and as the common channel for swallowing and breathing, the food and air pathways in the pharynx cross each other.

The following conditions can affect the pharynx:

Pharyngitis

As one of the most common reasons people visit their family practice physicians, pharyngitis is a sore throat caused by inflammation of the back of the throat.

Pharyngitis can make it painful to swallow, and you may experience soreness, discomfort, pain, or scratchiness in the throat.

Most sore throats occur during colder months and subside within a week or less. Sore throats are often caused by viral infections including the common cold, flu, mononucleosis ("mono"), measles, chickenpox, and croup.

However, bacteria such as strep throat (caused by Group A Streptococcus), whooping cough, and diphtheria can sometimes cause pharyngitis.

If your sore throat is caused by a virus, antibiotics won’t help, but if your sore throat is a result of strep throat, chlamydia or gonorrhea — all of which are bacterial infections — antibiotics can help the healing process.

The following remedies may help soothe a sore throat:

  • Getting rest
  • Avoiding alcohol
  • Drinking warm liquids, such as lemon tea or tea with honey
  • Gargling with warm salt water (1/2 tsp of salt in 1 cup of water) throughout the day
  • Drinking cold liquids or sucking on fruit-flavored ice pops
  • Sucking on hard candies or throat lozenges (for adults only)
  • Running a cool-mist vaporizer or humidifier
  • Taking over-the-counter pain medications, such as acetaminophen (Tylenol) or ibuprofen (Advil, Motrin)

Pharyngeal Cancer

Pharyngeal or throat cancer refers to cancerous tumors that develop anywhere in the pharynx, larynx (voice box), or tonsils. Pharyngeal cancer can also affect the piece of cartilage that acts as a lid for your windpipe.

Most throat cancers begin as thin, flat cells that look like fish scales. These cells develop genetic mutations that cause cells to grow uncontrollably and continue living after healthy cells would normally die. The accumulating cells can form a tumor in your throat.

Signs and symptoms of throat cancer may include the following:

  • A cough
  • Changes in your voice, such as hoarseness
  • Difficulty swallowing
  • Ear pain
  • A lump or sore that doesn't heal
  • A sore throat
  • Weight loss

Treatment options for throat cancer vary depending on your condition, and may include one or more of the following, sometimes used in combination:

  • Radiation
  • Surgery
  • Chemotherapy
  • Targeted drug therapy

In 2014, there were an estimated 12,630 people diagnosed with laryngeal cancers and 14,410 diagnosed with pharyngeal cancers. Moreover, there were 3,610 deaths from laryngeal cancer and 2,540 deaths from pharyngeal cancers.

The following can reduce your risk of throat cancer:

  • Quit smoking
  • Not chewing tobacco
  • Limiting alcohol consumption

Sources:

  • Pharyngitis - sore throat; National Institutes of Health
  • O'Rahilly, Müller, Carpenter & Swenson, Basic Human Anatomy
  • Pharynx and Larynx; Emory University
  • Throat (Laryngeal and Pharyngeal) Cancer; National Cancer Institute
  • Throat cancer; Mayo Clinic

Source: http://www.everydayhealth.com

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