Swollen Tonsil on One Side

The lymph nodes at the back of the throat are known as the tonsils. They are associated with taking on infections getting in the body through the nose and mouth. Often swelling in the tonsils can occur, on one side or both. A swollen tonsil on one side is most frequent in children aged 2-15. They may likewise struggle with headache, sore throat, fever, hoarse voice, and problem swallowing. The tonsils appear red, and might have yellow or white spots.

Possible Causes of Swollen Tonsil on One Side

There are numerous possible factors for this condition. In this post, we will detail 3 of the most typical causes, and indicate some of the other symptoms you must keep an eye out for. Nevertheless, for an exact diagnosis, you’ll need to see a doctor.

1. Tonsillitis

If the tonsils are infected, they end up being irritated and swell. This condition, called tonsillitis, is most typically seen in children, and can repeat regularly.


Tonsillitis is caused by bacterial and viral infections, most frequently Streptococcus (strep) bacteria. It can likewise be because of:

  • Influenza virus
  • Epstein-Barr infection
  • Enterovirus
  • Adenovirus
  • Parainfluenza infection
  • Herpes simplex infection
  • Enteroviruses


Tonsillitis is characterized by irritated, swollen tonsils, which can grow large enough to cause respiratory tract obstruction. You may likewise experience:

  • Bad breath
  • Sore throat
  • Reddened tonsils, with a yellow or white coating
  • Neck and jaw gland swelling
  • A scratchy or weak voice
  • Painful ulcers and blisters on the throat
  • Difficulty breathing through the mouth and swallowing
  • Headache
  • Earache
  • Decreased appetite
  • Fever and chills

Swollen Tonsil on One Side

Children with tonsillitis likewise often experience vomiting, queasiness, and abdominal pain.


Tonsillitis treatment is mostly figured out by the cause, which can be recognized by taking a throat swab and sending this for laboratory testing. Bacterial infection may be spotted, but if not, the patient is assumed to have a viral infection, according to iytmed.com. Alternatively, health examination and medical interview might indicate a bacterial infection.

Bacterial tonsillitis is usually treated with antibiotics. You need to take the entire course, even if symptoms enhance, to avoid regression. By contrast, viral infections are often delegated fix on their own.

You can likewise take the following steps to eliminate symptoms:

Information verified by the iytmed.com team.
  • Rinsing with salt water
  • Drawing on throat lozenges including anesthetic substances, such as benzocaine
  • Using over the counter pain relievers
  • Relieving pain in the throat with either extremely cold or warm drinks
  • Using a cold-mist humidifier or vaporizer
  • Choosing smooth foods that will not aggravate your throat, such as ice cream, soups, and jelly

In recurring tonsillitis, or if the bigger tonsils are triggering excellent problem swallowing or breathing, your doctor might advise total elimination of the tonsils.

2. Strep Throat

Another possible cause of swollen tonsil on one side is strep throat. Patients with strep throat have throat pain and inflammation, caused by Streptococcus bacterial infection. Although it can impact individuals at any age, it is most common in children aged in between 5 and 15. It is spread out from person to person by coughing and sneezing.


Strep throat can vary in the type and severity of symptoms, which typically develop within five days of bacterial exposure. The following symptoms are particular of strep throat:

  • Sore throat
  • Fever
  • Problem swallowing
  • Swollen neck glands
  • Reduced hunger
  • Headache
  • Chills
  • A reddened throat with white patches


Medical professionals normally recommend antibiotics to deal with strep throat, and limit the spread of Streptococcus bacteria. Although a number of different sort of antibiotic can be prescribed, amoxicillin and penicillin are most typical. It can be appealing to stop antibiotic medication when symptoms have improved, but this can trigger a regression and promote antibiotic resistance, so make certain you take the entire course.

There are likewise lots of natural home remedy you can use for strep throat to ease your symptoms. These include:

  • Throat lozenges
  • Rinsing with salt water
  • Cold-mist humidifiers
  • Over the counter pain relievers, such as aspirin and ibuprofen
  • Warm drinks, such as herbal teas and lemon water
  • Cold drinks to numb a sore throat

3. Peritonsillar Abscess

Peritonsillar abscess, frequently called quinsy, is an unusual, however potentially serious consequence of tonsillitis, which might be the cause for swollen tonsil on one side. This is where pus gathers between the throat wall and tonsil, forming an abscess. It’s a result of the bacterial infection spreading from the tonsil to the surrounding region of the mouth. Quinsy is most regularly seen in young people and teenagers, and can happen more than as soon as.


Quinsy is suspected if patients have the following symptoms:

  • Bad breath
  • A swollen mouth or throat
  • Problem opening the mouth
  • Painful and hard swallowing, which can cause drooling
  • An extremely painful throat on one side, which seems to be intensifying
  • Vocal changes or problem speaking
  • Pain in the ear on the affected side of the head
  • Headache
  • Trouble breathing
  • High temperature level and fever, although this typically deals with prior to the abscess forming
  • A general run-down feeling


The pus within the abscess will often have to be drained pipes by lancing the abscess with a needle. This can generally be performed in the doctor’s surgery. In addition, a course of antibiotics is usually recommended. In case of recurring quinsy, the tonsils might need to be eliminated.

When to See a Doctor for Swollen Tonsil on One Side

If you see any of the following, look for medical help:

  • Sore throat that has actually not disappeared after 48 hours, is accompanied by swollen, tender glands, or occurs with a rash
  • No enhancement after two days strep antibiotic treatment
  • Trouble swallowing or breathing
  • Fever over 101 ° F (38.3 ° C) or lasting over two days
  • Cola-colored urine for over a week– this may be post-streptococcal glomerulonephritis– a type of kidney inflammation
  • Painful or swollen joints, shortness of breath, fever, or rash. This can take place even 3 weeks after strep, and suggests rheumatic fever.


Reyus Mammadli

As a healthy lifestyle advisor I try to guide individuals in becoming more aware of living well and healthy through a series of proactive and preventive measures, disease prevention steps, recovery after illness or medical procedures.

Education: Bachelor Degree of Medical Equipment and Electronics.

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