Difficulty Swallowing: Is it a Peritonsillar Abscess?

Image from ER of Irving detailing when a sore throat requires emergency care, featuring text and a person holding their throat.

Medically reviewed by the ER of Irving Clinical Team · Updated:

September 29, 2026

We have all been there, that scratchy, uncomfortable feeling in the back of the throat that makes it hard to enjoy a meal. Usually, it’s a cold or perhaps a routine case of strep throat that clears up with rest. But sometimes, a sore throat isn’t just a nuisance; it becomes a serious medical situation.

When the pain becomes so intense that you can’t swallow your own saliva or your voice sounds different to your family, it’s natural to feel anxious. You might be dealing with a peritonsillar abscess, a condition that requires prompt medical evaluation. Understanding the difference between a typical infection and an emergency can help you get the care you need before things get worse.

What is a Peritonsillar Abscess?

MedlinePlus states that a peritonsillar abscess is a collection of pus that forms in the tissues of the throat next to one of the tonsils. This throat abscess often starts as a complication of tonsillitis or strep throat. When the infection breaks through the tonsil and spreads into the surrounding area, the body tries to wall it off, creating a painful, swollen pocket.

This condition (historically called “quinsy”) most often occurs in older children, adolescents, and young adults. According to MedlinePlus, swollen tissues can block the airway, which is a life-threatening medical emergency. Trouble breathing warrants a severe sore throat ER visit.

When Strep Throat Gets Dangerous

Most cases of strep throat resolve beautifully with a standard course of antibiotics. However, if the bacteria, usually Streptococcus pyogenes, are particularly aggressive or if treatment is delayed, the infection can invade deeper tissues.

The Progression of Infection

When strep throat gets dangerous, the infection moves beyond the surface of the tonsils. The CDC lists abscesses (pockets of pus) around the tonsils or in the neck among strep throat complications. MedlinePlus advises taking antibiotics for 10 days, even though symptoms are often gone within a few days.

Recognizing the Red Flags: Symptoms You Can’t Ignore

Three red flags of a peritonsillar abscess: drooling, a swollen tender lump under the jaw on the affected side, and the uvula pushed to one side

How do you know if your sore throat has crossed the line into an emergency? A peritonsillar abscess usually presents with symptoms that are much more “one-sided” and severe than a typical viral cold.

Trouble Opening the Mouth

MedlinePlus lists difficulty opening the mouth, and pain with opening the mouth, among the symptoms. Trouble opening the mouth is called trismus. If you find you can only open your mouth a crack to take a sip of water, this is a major red flag.

The “Hot Potato” Voice

Doctors often look for a symptom called the “hot potato voice.” This is a muffled quality to your speech, sounding as if you are trying to talk with a mouthful of hot food. MedlinePlus states that this happens because the swelling is physically obstructing the throat and affecting the movement of the soft palate.

Other Warning Signs:

  • Drooling: If it hurts too much to swallow your own spit, it will begin to pool in your mouth.
  • Swollen Lymph Nodes: You may feel a very large, tender lump under your jaw on the affected side.
  • Uvular Deviation: If you look in a mirror and see the “dangly bit” (uvula) at the back of your throat pushed to one side, the abscess is likely pushing against it.

Is it just a Sore Throat or an Emergency?

It can be difficult for a patient to self-diagnose, but comparing these symptoms can help you decide where to go for care.

SymptomViral Sore ThroatStrep ThroatPeritonsillar Abscess
Pain LevelMild to ModerateSevereSevere, usually one side
FeverSometimesUsuallyFever and chills
SwellingSymmetricalSymmetricalOne-Sided (Asymmetric)
Ability to SwallowUncomfortableDifficultNearly Impossible
Voice QualityRaspy/HoarseNormalMuffled/Hot Potato

If you are experiencing the symptoms in the far-right column, you should seek an ER evaluation for a severe sore throat.

Diagnosis and Immediate Care

How a peritonsillar abscess is treated: pain medicine first, drainage with a needle or by cutting it open, and antibiotics

When you arrive at an urgent care or emergency room, the medical team will likely perform a physical exam and perhaps a CT scan.

Emergency Drainage and Antibiotics

The primary treatment for a peritonsillar abscess involves two steps: emergency drainage and antibiotics.

  1. Drainage (Aspiration): MedlinePlus states that if an abscess has developed, it will need to be drained with a needle or by cutting it open. You will be given pain medicine before this is done.
  2. Antibiotics: According to MedlinePlus, the infection can be treated with antibiotics if it is caught early.

Prevention and Long-Term Recovery

According to MedlinePlus, quick treatment of tonsillitis may help prevent an abscess. If you are diagnosed with strep, follow the treatment plan exactly. For a child who gets throat infections often, MedlinePlus says a provider may consider a tonsillectomy.

During recovery, focus on hydration. Even if it is difficult, small sips of cool liquids are vital. According to MedlinePlus, in most cases a peritonsillar abscess goes away with treatment, but the infection may return.

We Are Here to Help

If you or a loved one is struggling with a sore throat that feels “different” if you can’t open your mouth fully, or the pain is concentrated on one side don’t wait. Your comfort and safety are our priority. ER of Irving provides emergency sore throat care when you cannot swallow or your breathing is affected.

Need Immediate Care? Call Us Now at (972) 893-3148

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FAQs

Can a peritonsillar abscess go away on its own?

It is very unlikely. Without treatment, the abscess can grow and potentially block the airway or spread the infection to the neck and chest.

Is a peritonsillar abscess (quinsy) contagious?

A peritonsillar abscess is a complication of tonsillitis, often caused by strep bacteria. According to MedlinePlus, strep throat spreads by person-to-person contact with fluids from the nose or saliva.

Can I go to Urgent Care, or do I need the ER?

If you are having trouble breathing or cannot swallow your own saliva, go straight to the severe sore throat ER. If your symptoms are severe but your airway is clear, a well-equipped Urgent Care can often begin the diagnostic process.

Will I need to have my tonsils removed?

Usually not. According to MedlinePlus, the tonsils are removed when the abscess is drained only if the infection is very severe, and this is rare.

What does “Hot Potato Voice” mean?

It is a clinical term for a muffled voice caused by the swelling of the peritonsillar tissues. It sounds as if you are trying to speak while protecting your tongue from a very hot piece of food in your mouth.

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