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Peritonsillar Abscess

Infection Peritonsillar abscess Brief outline/clinical setting Pus present deep to the capsule of the tonsil, in a plane between the tonsil and superior constrictor muscle. Presents with deviation of the uvula and tonsil toward the midline, soft palate swelling and trismus Aetiologies/organisms Staphylococcus aureus Group A Streptococcus Anaerobes Optimal antimicrobial selection Amoxicillin-clavu

Infection Peritonsillar abscess
Brief outline/clinical setting Pus present deep to the capsule of the tonsil, in a plane between the tonsil and superior constrictor muscle. Presents with deviation of the uvula and tonsil toward the midline, soft palate swelling and trismus
Aetiologies/organisms Staphylococcus aureus
Group A Streptococcus

Anaerobes
Optimal antimicrobial selection
  1. Amoxicillin-clavulanate 2000mg amoxicillin/125mg clavulanate 12 hourly if patient not responding
    Draining the abscess is the best treatment
Duration 5-7 days 
Alternative if allergic/not available Clindamycin 600 – 900mg IV 8hrly 
Plus 
Metronidazole 500mg IVI TDS 
Rationale  
Level of evidence   
Link to Guideline  

Drugs mentioned

NeoHealth® ID 23875 · updated 3/27/2024