What is the treatment for a peritonsillar abscess?

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Last updated: July 3, 2025View editorial policy

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From the Guidelines

The treatment for a peritonsillar abscess should involve drainage of the abscess, which can be effectively guided by ultrasound imaging, as recommended by the American College of Emergency Physicians 1. This approach is crucial for managing the abscess and preventing potential complications such as airway compromise or the spread of infection to other areas. The primary methods for drainage include needle aspiration or incision and drainage, typically performed under local anesthesia by a qualified healthcare professional, such as an otolaryngologist or emergency physician. Following drainage, antibiotic therapy is essential to treat the underlying bacterial infection. Commonly prescribed antibiotics include penicillin (e.g., amoxicillin-clavulanate), clindamycin for patients allergic to penicillin, or a combination of metronidazole with a cephalosporin. Additionally, pain management with medications like acetaminophen or NSAIDs, maintaining hydration, and using warm salt water gargles can help alleviate symptoms. In severe cases, hospitalization may be necessary for intravenous antibiotic administration and close monitoring of the airway. For patients experiencing recurrent peritonsillar abscesses, a tonsillectomy might be considered after the acute infection has resolved. It's critical to prioritize prompt and effective treatment to minimize the risk of complications and improve patient outcomes. Key considerations in the treatment plan should focus on:

  • Effective drainage of the abscess, potentially guided by ultrasound imaging 1
  • Appropriate antibiotic therapy
  • Symptomatic relief and pain management
  • Monitoring for and managing potential complications, especially in severe cases.

From the Research

Treatment Options for Peritonsillar Abscess

  • The treatment for peritonsillar abscess can vary, but common approaches include drainage of the abscess, antibiotic therapy, and supportive therapy for maintaining hydration and pain control 2.
  • Surgical methods such as needle aspiration and incision and drainage are used to treat peritonsillar abscess, with some studies suggesting that incision and drainage may be associated with a lower chance of recurrence than needle aspiration 3.
  • Outpatient medical treatment protocols have also been successful, involving hydration, antibiotics, steroids, and good pain control, with only a small percentage of patients requiring subsequent needle aspiration or incision and drainage 4.
  • Immediate tonsillectomy is another treatment option, which has been shown to be safe and effective in some studies, providing dramatic relief of symptoms within a few days following the operation 5.

Medical Management

  • Antibiotics effective against group A streptococcus and oral anaerobes should be first-line therapy for peritonsillar abscess 2.
  • Corticosteroids may be helpful in reducing symptoms and speeding recovery, with some studies suggesting that the use of intravenous steroids can reduce many symptoms when used along with abscess drainage 6.
  • Maintaining hydration and pain control are also important aspects of medical management, with most patients able to be managed in the outpatient setting 2.

Surgical Intervention

  • Needle aspiration and incision and drainage are the two main surgical treatment modalities currently used for peritonsillar abscess, with the choice of procedure depending on various factors, including the size and location of the abscess 3.
  • Quinsy tonsillectomy is another surgical option, which involves the removal of the tonsil and has been shown to be effective in some studies 6.
  • The use of intraoral ultrasound can be a helpful diagnostic tool for peritonsillar abscess, allowing for more accurate diagnosis and treatment planning 6.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Peritonsillar Abscess.

American family physician, 2017

Research

Immediate tonsillectomy for peritonsillar abscess.

Auris, nasus, larynx, 1999

Research

The contemporary approach to diagnosis and management of peritonsillar abscess.

Current opinion in otolaryngology & head and neck surgery, 2005

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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