Peritonsillar Abscess (Quinsy): Hot Potato Voice, Uvular Deviation, Trismus, Drooling, and Needle Aspiration vs. Parapharyngeal Spread¶

When a sore throat turns sharply worse on one side, accompanied by a muffled "hot potato" voice (sounding as if the person is speaking with a scalding hot potato in their mouth), inability to open the mouth normally (trismus or locked jaw), severe pain radiating into the ear on the same side, drooling because swallowing saliva is too painful, and a swollen soft palate that pushes the dangling uvula across the midline toward the opposite (healthy) side, the diagnosis is a peritonsillar abscess (PTA), historically known as quinsy. Go immediately to a hospital emergency department with otolaryngology (ENT) surgical capabilities, or call your local emergency number (911 in the United States and Canada, 112 across the European Union, 999 in the United Kingdom; see our nambarada degdega ah) right away if the person is drooling, struggling to breathe, or unable to swallow. While preparing for transport, distinguish a unilateral peritonsillar abscess from bilateral floor-of-mouth swelling using our Hagaha marin-haweedka angina ee Ludwig, compare posterior throat infections in our retropharyngeal abscess and mediastinitis guide, and watch for signs of internal jugular vein sepsis in our Lemierre's syndrome guide.

A peritonsillar abscess is the single most common deep neck space infection in children, adolescents, and young adults. It forms when a bacterial infection (typically a polymicrobial mix of Group A beta-hemolytic Streptococcus pyogenes, Streptococcus anginosus group, and oral anaerobes like Fusobacterium and Prevotella) breaks through the fibrous outer capsule of the palatine tonsil (or obstructs Weber's minor salivary glands at the superior pole of the tonsil) and collects as a tense pocket of pus inside the potential space between the tonsillar capsule medially and the superior pharyngeal constrictor muscle laterally. Because the superior pharyngeal constrictor muscle is the only thin muscular wall separating a peritonsillar abscess from the parapharyngeal space and the carotid sheath (where the internal carotid artery often sits just 1.0 to 2.5 centimeters behind and lateral to the tonsil), an untreated peritonsillar abscess can rapidly obstruct the upper airway, rupture spontaneously into the lungs during sleep (causing fatal aspiration pneumonia), or erode laterally to cause parapharyngeal abscess, Lemierre's syndrome, or catastrophic carotid artery hemorrhage. Once frank pus forms inside this space, oral antibiotics alone cannot cure a peritonsillar abscess; definitive relief requires emergency needle aspiration or incision and drainage alongside intravenous antibiotics and corticosteroids.

Hadda samee tan¶

1. Go to a hospital emergency department immediately (or call 911 / 112 / 999 if drooling, short of breath, or making high-pitched stridor sounds). Do not go to a retail pharmacy clinic or wait days for a primary care appointment, and do not assume oral amoxicillin or penicillin prescribed earlier in the week will dissolve a formed abscess. A peritonsillar abscess requires emergency medical drainage, intravenous hydration, intravenous steroids, and anaerobic-active antibiotics.
2. Keep the person sitting upright leaning slightly forward and give them a cup or towel to spit out saliva. Never force a patient who is drooling or speaking with a thick "hot potato" voice to lie flat on their back, which allows the swollen soft palate and tonsil to prolapse backward against the airway and increases the risk of choking on pooled saliva or spontaneous pus rupture.
3. Perform the "Two-Finger Trismus Check" and look at the uvula with a phone flashlight (without putting anything inside the mouth). Ask the person to open their mouth as wide as they comfortably can:
4. Normally, an adult or older child can easily fit three stacked fingers (35 to 50 millimeters) vertically between their upper and lower front teeth. If they can only open their mouth one or two fingerbreadths (< 20 to 25 millimeters) because of painful spasm in the side of the jaw, trismus is present (indicating the inflammation has irritated the adjacent medial pterygoid muscle).
5. Shine a flashlight in the mouth without using a spoon or tongue depressor: in a peritonsillar abscess, the soft palate above the tonsil bulges downward and forward like a taut red balloon, pushing the tonsil downward/inward and pushing the uvula noticeably sideways toward the opposite (healthy) side.
6. NEVER attempt to pop, squeeze, lance, or poke a swollen tonsil at home with a cotton swab, finger, needle, or tweezers. Behind the lateral edge of the tonsil lies the internal carotid artery. Blindly poking or pressing on a peritonsillar bulge at home can lacerate the internal carotid artery (causing fatal exsanguination in seconds) or rupture a flood of thick pus straight down into the windpipe.
7. Keep the patient Nothing by Mouth (NPO) as soon as you head to the hospital. Even if the patient is terribly thirsty from days of poor swallowing and fever, do not let them eat or drink on the way to the emergency department. Needle aspiration, incision and drainage under local/topical anesthesia, or operating room drainage requires an empty stomach so the patient does not vomit and aspirate during throat manipulation.
8. Watch for red flags that the infection has broken out of the tonsillar space into the deep neck (Parapharyngeal Spread). If swelling, redness, or extreme tenderness extends below the angle of the jaw down the side of the neck (along the front of the sternocleidomastoid muscle), or if the patient develops a stiff neck, shaking chills (rigors), or chest pain, alert the emergency physician immediately so they order a contrast-enhanced CT scan of the neck before attempting any needle procedure.

Clinical decision tree for severe unilateral sore throat, trismus, and uvular deviation¶

Use this emergency clinical flowchart to differentiate simple exudative tonsillitis, peritonsillar cellulitis (phlegmon), frank peritonsillar abscess (quinsy), and deep parapharyngeal/carotid space spread.

flowchart TD
    Start["Severe Sore Throat (Worse on ONE Side),<br/>Fever, Odynophagia, or Referred Ear Pain"] --> Exam["Assess Airway & Perform 3-Point Oral/Neck Check:<br/>1. Muffled 'Hot Potato' Voice or Drooling<br/>2. Trismus (Inter-Incisor Opening < 25 mm)<br/>3. Unilateral Soft Palate Bulge + Uvula Pushed to Opposite Side"]

    Exam --> AirwayCheck{"Is There Stridor, Severe Dyspnea,<br/>Cyanosis, or Inability to Lie Flat?"}

    AirwayCheck -->|"YES: IMPENDING AIRWAY OBSTRUCTION"| EmergentAirway["IMMEDIATE OPERATING ROOM AIRWAY CODE:<br/>1. Keep Patient Sitting Bolt Upright (90 Degrees)<br/>2. Mobilize Anesthesiology + ENT for Awake Fiberoptic<br/>   Intubation or Awake Tracheostomy Backup<br/>3. Give Stat IV Dexamethasone 10 mg + IV Antibiotics<br/>4. Perform Surgical Drainage in OR Once Airway Secured"]

    AirwayCheck -->|"NO: Airway Stable While Sitting Upright"| DeepSpread{"Are Signs of Deep Parapharyngeal or<br/>Carotid Sheath Spread Present?<br/>(External Neck Swelling Below Jaw Angle,<br/>Anterior SCM Tenderness, Rigors, Torticollis,<br/>or Severe Trismus Blocking Oral View)"}

    DeepSpread -->|"YES: Suspect Parapharyngeal Abscess<br/>or Lemierre's Syndrome"| ContrastCT["STAT CONTRAST-ENHANCED CT OF THE NECK:<br/>1. Maps Exact Abscess Location Relative to the<br/>   Internal Carotid Artery & Internal Jugular Vein<br/>2. Start IV Ampicillin-Sulbactam 3 g q6h (or Ceftriaxone<br/>   + Metronidazole) + Vancomycin + IV Dexamethasone<br/>3. ENT Operating Room Drainage (Transoral or External)"]

    DeepSpread -->|"NO: Classic Isolated Unilateral<br/>Supratonsillar Soft Palate Bulge"| Ultrasound["GOOLAHA GUDAHA GUDAHA / DHAQANKA DHAQANKA AH <br/>"]

    Ultrasound -->|"Hypoechoic Fluid Collection<br/>(True Peritonsillar Abscess)"| Drainage["EMERGENCY DRAINAGE + MEDICAL RESCUE:<br/>1. Topical/Local Anesthetic + IV Hydration +<br/>   IV Dexamethasone 10 mg Single Dose<br/>2. Needle Aspiration (18G Needle with Depth Guard<br/>   <= 1.0 to 1.5 cm at Superior Pole) OR<br/>   Guarded Scalpel Incision & Drainage<br/>3. IV/Oral Ampicillin-Sulbactam or Amoxicillin-Clavulanate"]

    Ultrasound -->|"Solid Edema Only, No Pus<br/>(Peritonsillar Cellulitis)"| Cellulitis["PERITONSILLAR CELLULITIS (PHLEGMON):<br/>1. Do Not Incise (No Pus to Drain Yet)<br/>2. Give IV Hydration, IV Dexamethasone 10 mg,<br/>   and IV Ampicillin-Sulbactam / Ceftriaxone + Metronidazole<br/>3. Observe 12 to 24 Hours for Resolution vs. Liquefaction"]

Anatomy and pathophysiology: The peritonsillar space, Weber's glands, and the internal carotid artery hazard¶

Understanding the exact anatomical boundaries of the tonsillar bed explains every clinical sign of quinsy and reveals why needle aspiration must follow strict geometric landmarks to avoid the internal carotid artery.

1. Anatomical boundaries of the peritonsillar space and Weber's glands¶

The palatine tonsil sits nested inside a triangular depression on the side wall of the oropharynx called the tonsillar fossa, framed in front by the anterior tonsillar pillar (palatoglossus muscle) and in back by the posterior tonsillar pillar (palatopharyngeus muscle). - The Peritonsillar Space: Surrounding the deep side of the tonsil is a loose areolar potential space bounded by: - ** Dhexdhexaad ahaan:** Fiberka adag ** kaabsulka qumanka palatine**. - Laterally: The superior pharyngeal constrictor muscle (which separates the peritonsillar space from the parapharyngeal space). - ** Hore:** Tiirka hore ee qumanka (muruqa palatoglossus). - Posteriorly: The posterior tonsillar pillar (palatopharyngeus muscle). - Two Mechanisms of Abscess Formation (Tonsillitis Progression vs. Weber's Gland Sialadenitis): 1. Direct Tonsillar Extension: Acute bacterial tonsillitis breaches the fibrous tonsillar capsule at its thinnest superior-lateral aspect, progresses through a 24-to-48-hour stage of peritonsillar cellulitis (phlegmon), and liquefies into a walled-off peritonsillar abscess. 2. Weber's Gland Obstruction (Explaining Why PTA Can Occur Without Severe Prior Tonsillitis or Even After Partial Tonsillectomy): Tucked into the soft palate directly above the upper pole (superior pole) of the tonsil is a cluster of 20 to 25 minor mucous salivary glands called Weber's glands, whose tiny ducts empty into the superior tonsillar crypts to flush out debris. If inflammation or scarring plugs the ducts of Weber's glands, suppurative infection inside the glands forms an abscess directly in the supratonsillar soft palate (which explains why 90 percent of peritonsillar abscesses sit at the superior pole above the tonsil rather than behind its lower pole).

+-------------------------------------------------------------------------+
|     ANATOMY OF A PERITONSILLAR ABSCESS & INTERNAL CAROTID PROXIMITY     |
+-------------------------------------------------------------------------+
|  VIEW LOOKING INTO THE OPEN MOUTH (EXAMPLE: LEFT PERITONSILLAR ABSCESS) |
|                                                                         |
|   * Soft Palate & Anterior Pillar on Affected Side:                     |
|     - Swollen, erythematous, bulging DOWNWARD and FORWARD               |
|     - Effaces (flattens out) the normal fold of the anterior pillar     |
|   * Palatine Tonsil on Affected Side:                                   |
|     - Pushed DOWNWARD, MEDIALLY (toward midline), and FORWARD           |
|   * Uvula (Midline Marker):                                             |
|     - Pushed across the midline AWAY from the abscess toward the        |
|       HEALTHY (opposite) tonsil                                         |
+-------------------------------------------------------------------------+
|  WHAT LIES DIRECTLY LATERAL & POSTERIOR TO THE ABSCESS (THE DANGER):    |
|   * Thin Superior Pharyngeal Constrictor Muscle (only 2-3 mm thick)     |
|   * Lateral to that muscle = PARAPHARYNGEAL SPACE & CAROTID SHEATH      |
|   * INTERNAL CAROTID ARTERY + Ascending Pharyngeal/Facial Arteries      |
|     sit just 1.0 to 2.5 cm posterolateral to the inferior/middle tonsil |
|   * Medial Pterygoid Muscle (chewing muscle) sits immediately lateral   |
|     to the superior constrictor -> Irritation causes SEVERE TRISMUS     |
+-------------------------------------------------------------------------+

2. Why Peritonsillar Abscess causes the 4 classic clinical signs¶

1. ** Trismus daran (Waxay ku jirtaa saddex-meelood laba meelood ee bukaannada, iyo kala-duwanaanta #1 ee qumanka fudud):** Isla markiiba ka baxsan muruqa xajinta qanjidhada sare waxaa jiifa ** dhexdhexaad ah (gudaha) muruqa pterygoid ***, mid ka mid ah murqaha xoogga leh ee naasaha ee xira daanka. Marka malaxda iyo cytokines bararka ay ku ururaan bannaanka peritonsillar, bararka joogtada ahi waxa uu ka xanaajiyaa muruqa pterygoid-ka dhexdhexaadka ah ee rabshadaha ** reflex muruqa spasm ***. Isku dayga in la furo afka waxa ay fidisaa fiilooyinka muruqa ee bararsan, taas oo keenta xanuun aad u daran oo daanka ku xidha in ka yar 15 ilaa 25 millimitir ee furitaanka. (Luul kiliiniga: fayras ba'an ba'an ama qumanka strep WELI ma keeno trismus daran; haddii bukaan cune xanuun qaba uusan afka kala qaadi karin, isla markaaba ka shaki xuubka peritonsillar ama malaxda parapharyngeal).
2. Muffled "Hot Potato" Voice (Rhinolalia Clausa): To speak clearly, the soft palate (velum) must elevate and touch the posterior pharyngeal wall to seal off the nasal cavity appropriately. When a large collection of pus distends the unilateral soft palate and immobilizes the palatoglossus and levator veli palatini muscles, the patient cannot elevate their soft palate and unconsciously holds the back of their throat stiffly open to minimize pain, producing the hollow, muffled resonance of someone trying to talk around a scalding hot potato.
3. Contralateral Uvular Deviation and Inferior-Medial Tonsil Displacement: Because the abscess sits inside the supratonsillar soft palate above and lateral to the tonsil capsule, the expanding ball of pus pushes the tonsil itself downward and toward the center of the throat, while pushing the soft tissue of the soft palate and the uvula sideways toward the opposite, healthy side.
4. Ipsilateral Referred Ear Pain (Otalgia via Jacobson's Nerve): Even though the eardrum and middle ear are 100 percent normal on otoscopy, patients complain bitterly of sharp, stabbing earache on the same side as the abscess. This occurs because the glossopharyngeal nerve (cranial nerve IX) supplies sensory fibers to both the tonsillar fossa/pharynx and the middle ear cavity via its tympanic branch (Jacobson's nerve); the brain misinterprets intense tonsillar capsule stretching as pain coming from deep inside the ear.

Differentiating Peritonsillar Abscess from Peritonsillar Cellulitis, Tonsillitis, and Deep Neck Spread¶

Use this clinical comparison table to distinguish a drainable peritonsillar abscess from its pre-abscess stage (peritonsillar cellulitis) and from deeper, life-threatening neck space infections:

Hospital Emergency Department and ENT management protocol¶

+-------------------------------------------------------------------------+
|     EMERGENCY DEPARTMENT & ENT PROTOCOL FOR PERITONSILLAR ABSCESS       |
+-------------------------------------------------------------------------+
|  STEP 1: IMMEDIATE MEDICAL RESUSCITATION & PAIN/EDEMA CONTROL           |
|  * IV Isotonic Crystalloid Bolus: 1,000 mL Normal Saline or Lactated    |
|    Ringer's (most patients are severely dehydrated from 2-4 days of     |
|    inability to swallow liquids)                                        |
|  * Single-Dose Intravenous Corticosteroid (AAO-HNS / Evidence-Based):   |
|    - Dexamethasone 10 mg IV (Children: 0.3 to 0.6 mg/kg IV, max 10 mg)  |
|    - Meta-analyses show a single dose of IV dexamethasone rapidly       |
|      relieves trismus, reduces pain, speeds time to oral swallowing,    |
|      and decreases hospital length of stay without worsening infection  |
|  * Parenteral Analgesia & Antiemetic: IV Ketorolac (if not going to     |
|    open surgery) or IV Fentanyl + IV Ondansetron                        |
+-------------------------------------------------------------------------+
|  STEP 2: EMPIRIC POLYMICROBIAL ANTIBIOTICS (STREP + ORAL ANAEROBES)     |
|  * Intravenous Regimens:                                                |
|    - FIRST LINE: Ampicillin-Sulbactam (Unasyn) 3 g IV every 6 hours     |
|      (Children: 50 mg/kg/dose of ampicillin component IV q6h)           |
|    - ALTERNATIVE: Ceftriaxone 1 to 2 g IV daily PLUS Metronidazole      |
|      500 mg IV every 8 hours                                            |
|    - SEVERE PENICILLIN ALLERGY: Clindamycin 600 to 900 mg IV every 8h   |
|    - Add Vancomycin if MRSA risk or severe toxicity is present          |
|  * Oral Step-Down (Once Drained and Swallowing Liquids Comfortably):    |
|    - Amoxicillin-Clavulanate (Augmentin) 875/125 mg PO twice daily      |
|      for 10 to 14 days (OR Clindamycin 300-450 mg PO tid-qid)           |
+-------------------------------------------------------------------------+
|  STEP 3: ULTRASOUND LOCALIZATION & SURGICAL DRAINAGE                    |
|  * Point-of-Care Intraoral (Endocavitary) or Submandibular Ultrasound:  |
|    - Confirms liquid abscess vs. phlegmon & locates Internal Carotid    |
|  * Drainage Method 1: Guarded Needle Aspiration (18G needle with plastic|
|    sheath trimmed so ONLY 1.0 to 1.5 cm of needle tip is exposed)       |
|  * Drainage Method 2: Guarded #11 Blade Incision & Drainage + Blunt     |
|     curved Kelly Hemostat spreading in the SUPRATONSILLAR POLE           |
+-------------------------------------------------------------------------+

1. Why Point-of-Care Ultrasound (POCUS) has revolutionized Peritonsillar Abscess care¶

Historically, clinicians could only differentiate peritonsillar cellulitis (phlegmon) from a peritonsillar abscess by sticking a needle blindly into the swollen soft palate ("blind diagnostic needle aspiration"), which had a 10 to 24 percent false-negative rate and risked hitting blood vessels. - Today, emergency physicians and otolaryngologists place a high-frequency curved intracavitary ultrasound probe (covered in a sterile sheath with gel) gently against the swollen soft palate (or use a linear/curvilinear probe externally under the jaw if trismus is too tight). - Three Major Advantages of Ultrasound: 1. Immediately distinguishes solid peritonsillar cellulitis (which requires IV antibiotics and steroids without painful needle sticks) from a hypoechoic/heterogeneous liquid abscess cavity with posterior acoustic enhancement. 2. Turns on Color Doppler to map the exact depth and course of the internal carotid artery (which typically lies 1.5 to 2.5 centimeters posterolateral to the tonsil, but can tortuously curve closer to the pharyngeal wall in some patients). 3. Allows real-time ultrasound-guided needle aspiration, increasing first-pass drainage success past 90 to 95 percent.

2. The safety mechanics of Needle Aspiration and Incision & Drainage (Avoiding the Carotid Artery)¶

When an emergency physician or ENT specialist drains a peritonsillar abscess in a cooperative adolescent or adult: 1. Topical and Submucosal Anesthesia: The patient sits upright holding a suction Yankauer tip in their own hand (so they can immediately suction out blood and foul-tasting pus as soon as it drains). The mucosa over the supratonsillar bulge is sprayed with 4% topical lidocaine or benzocaine/cetacaine, followed by submucosal infiltration of 1% to 2% lidocaine with 1:100,000 epinephrine using a fine 27-gauge dental needle. 2. The Mandatory Needle Depth Guard (1.0 to 1.5 Centimeters Maximum): Before attaching an 18-gauge spinal or long needle to a 10 mL syringe, the clinician takes the plastic protective cap off the needle and cuts off the distal 1.0 to 1.5 centimeters of the plastic cap with sterile scissors, then slides the plastic sheath back onto the needle. This plastic depth guard makes it physically impossible for the needle tip to penetrate deeper than 1.0 to 1.5 centimeters into the soft palate, completely preventing accidental puncture of the internal carotid artery even if the patient coughs or jerks forward. 3. Aspiration Target (Superior Pole first, NEVER inferolateral): - Because 90 percent of peritonsillar abscesses sit in the superior (supratonsillar) pole and because the internal carotid artery sits closest to the inferior and lateral poles, the needle is inserted strictly in a sagittal plane (straight front-to-back, NEVER angled laterally toward the ear) into the point of maximal fluctuance at the superior pole (at the intersection of a horizontal line drawn through the base of the uvula and a vertical line drawn along the anterior tonsillar pillar). - If the superior pole yields no pus and ultrasound shows a middle-pole pocket, a second aspiration is performed 1 centimeter lower along the anterior pillar; the inferior pole is avoided due to carotid artery proximity. 4. Incision and Drainage (I&D) vs. Needle Aspiration vs. Interval Tonsillectomy: - Needle Aspiration: Resolves 85 to 92 percent of uncomplicated peritonsillar abscesses on the first pass with less post-procedural pain and bleeding. - Incision and Drainage (I&D): Using a guarded #11 scalpel blade (taped so only 0.5 to 1.0 cm of blade tip is exposed), the clinician makes a small mucosal incision over the superior pole bulge, then inserts a closed curved Kelly hemostat and gently spreads the jaws open to break up loculations, followed by warm saline/hydrogen peroxide gargles. I&D has a slightly higher primary cure rate (93 to 95 percent) for large or multiloculated abscesses. - Immediate ("Quinsy") Tonsillectomy vs. Interval Tonsillectomy: In young children who cannot cooperate with awake drainage, or in patients with recurrent peritonsillar abscesses (10 to 15 percent recurrence rate) or failure of needle/incision drainage, an ENT surgeon performs either an acute quinsy tonsillectomy under general anesthesia in the operating room or an elective interval tonsillectomy 4 to 6 weeks later once acute inflammation has subsided.

Deadly complications if a Peritonsillar Abscess spreads laterally or inferiorly¶

If a peritonsillar abscess is neglected or inadequately treated, pus breaks through the thin superior pharyngeal constrictor muscle into the parapharyngeal space, triggering four potentially fatal emergencies: 1. Parapharyngeal Space Abscess and Airway Occlusion: Swelling expands below the angle of the jaw down the lateral neck, pushing the entire lateral pharyngeal wall and supraglottis across the airway. 2. Lemierre's Syndrome (Internal Jugular Vein Septic Thrombophlebitis): Anaerobic Fusobacterium necrophorum invades the carotid sheath, clotting the internal jugular vein and showering both lungs with septic pulmonary emboli (see our Lemierre's syndrome guide). 3. Internal Carotid Artery Mycotic Pseudoaneurysm and Blowout Hemorrhage: Continuous bathing of the internal carotid artery wall in necrotizing bacterial enzymes weakens the arterial media, forming an infected carotid pseudoaneurysm. Often preceded by 1 or 2 small warning "sentinel bleeds" (spitting up a few tablespoons of bright red blood from the throat or ear), sudden rupture of the carotid pseudoaneurysm into the pharynx causes torrential, fatal arterial hemorrhage. (Any patient with a current or recent peritonsillar/parapharyngeal abscess who spits up bright red blood requires an immediate emergency CT angiogram [CTA] of the neck and neurointerventional endovascular stenting/embolization or surgical ligation). 4. Descending Necrotizing Mediastinitis: Pus tracks down the parapharyngeal and retropharyngeal spaces into the chest cavity.

Exact communication script for hospital triage¶

Markaad timaadid waaxda xaaladaha degdegga ah ee cusbitaalka oo leh bukaan looga shakisan yahay nabar xuubka peritonsillar, isticmaal qoraalkan cad marka la eego:

"I am here with a [Age]-year-old patient whose sore throat has become severely worse on the [left/right] side over the past [Number] days, and who now has a muffled hot-potato voice, severe ear pain on the same side, [drooling / inability to swallow liquids], and trismus (can only open their mouth about one finger wide). When we looked inside with a flashlight, the soft palate on the [left/right] side is bulging down and pushing the uvula over to the [opposite] side. We suspect an acute Peritonsillar Abscess (Quinsy). We have kept the patient sitting upright and Nothing by Mouth, and need an emergency physician and ENT evaluation for intravenous hydration, intravenous dexamethasone, ampicillin-sulbactam, and ultrasound-guided needle aspiration or drainage."

Su'aalaha soo noqnoqda¶

Why does a peritonsillar abscess cause your jaw to lock up (trismus) and make your ear ache when the infection is in your throat?¶

Immediately outside the thin muscle wall that holds your tonsil lies the medial pterygoid muscle, which is one of the main jaw-closing chewing muscles. When pus collects beside the tonsil, the inflammation irritates the medial pterygoid muscle into a tight, painful spasm (trismus) so you cannot open your mouth wide; at the same time, the ninth cranial nerve (glossopharyngeal nerve) that senses pain in your tonsil also sends a branch (Jacobson's nerve) to your middle ear, causing your brain to feel the tonsil pain as a sharp earache on the same side.

How can I tell the difference between bad strep throat (tonsillitis) and a peritonsillar abscess (quinsy)?¶

In ordinary strep throat or viral tonsillitis, both tonsils are red and swollen on both sides of the throat, you can still open your mouth wide (three fingers between your front teeth), and the little dangling uvula hangs straight down in the exact center of your throat. In a peritonsillar abscess, the pain and swelling shift strongly to one side, your jaw locks so you can barely open your mouth (trismus), your voice sounds muffled like you are holding a hot potato in your mouth, and the swollen soft palate above one tonsil pushes your uvula noticeably sideways toward the opposite cheek.

Why can't oral antibiotics cure a peritonsillar abscess without a doctor draining it with a needle or small incision?¶

Before an abscess forms (during the early stage called peritonsillar cellulitis), blood still flows through the swollen tissue, so intravenous antibiotics and steroids can cure it. However, once a walled-off pocket of liquid pus forms (an abscess), there are no blood vessels inside the pus cavity to carry oral antibiotics in, and the acidic, oxygen-poor pus deactivates many antibiotics; physically draining the pus with a guarded needle or tiny incision immediately relieves the pressure, stops the pain and trismus, and prevents the pus from bursting into your lungs or deep neck.

Why is spitting up even a small amount of bright red blood a medical emergency if you have or recently had a peritonsillar or deep neck abscess?¶

The internal carotid artery (the main artery carrying blood from your heart to your brain) runs in the neck tissue just 1 to 2.5 centimeters behind and to the side of your tonsil. Rarely, a deep peritonsillar or parapharyngeal infection can erode into the wall of the carotid artery or its branches, forming a fragile blister called a pseudoaneurysm; spitting up a small amount of bright red blood can be a "sentinel bleed" warning that the artery is about to rupture, requiring an immediate emergency room CT angiogram of the neck.

Sources checked¶

• American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS, United States): Clinical Practice Guideline: Tonsillectomy in Children and Management of Peritonsillar Abscess (indications for needle aspiration vs. incision and drainage vs. quinsy/interval tonsillectomy, and adjuvant single-dose intravenous corticosteroid therapy).
• Infectious Diseases Society of America (IDSA, United States): Practice Guidelines for the Diagnosis and Management of Group A Streptococcal Pharyngitis and Suppurative Peritonsillar/Parapharyngeal Complications (polymicrobial etiology of Streptococcus pyogenes, Streptococcus anginosus group, and beta-lactamase-producing oral anaerobes Fusobacterium and Prevotella, and empiric ampicillin-sulbactam, ceftriaxone plus metronidazole, and clindamycin regimens).
• American College of Emergency Physicians (ACEP, United States): Clinical Policy and Point-of-Care Ultrasound (POCUS) Guidelines for Intraoral and Transcutaneous Ultrasound in Peritonsillar Abscess (differentiating peritonsillar cellulitis from abscess, Color Doppler mapping of the internal carotid artery, and guarded 1.0 to 1.5 cm superior-pole needle aspiration technique).
• Cochrane Database of Systematic Reviews: Needle Aspiration Versus Incision and Drainage for the Treatment of Peritonsillar Abscess and Corticosteroids as Adjuvant Therapy for Peritonsillar Abscess (demonstrating significant reductions in pain, trismus, and time to swallowing with adjuvant intravenous dexamethasone).

Tilmaamaha la xidhiidha¶

• Ludwig's angina: bilateral submandibular floor-of-mouth cellulitis and woody neck induration
• Retropharyngeal abscess in children and adults, neck extension pain, and mediastinitis
• Lemierre's syndrome: internal jugular vein septic thrombophlebitis after sore throat
• Post-tonsillectomy hemorrhage: day 5 to 10 eschar sloughing and airway triage
• Epiglottitis, croup, stridor, iyo ba'an oo xannibaya marin-haweedka sare