What is the appropriate management and treatment for tonsillitis?

Management and Treatment of Tonsillitis

For acute tonsillitis, the primary decision is determining whether group A beta-hemolytic streptococcus (GAS) is present—if confirmed, treat with penicillin; if not, provide supportive care only, as most cases are viral and self-limited. 1, 2

Diagnostic Approach

Initial Assessment

• Use validated scoring systems to estimate the probability of bacterial (GAS) tonsillitis rather than relying solely on clinical impression 3, 2
• Apply the Centor score (or McIsaac/FeverPAIN alternatives) which evaluates:
  • Temperature >38.3°C (101°F)
  • Cervical lymphadenopathy (tender nodes or >2 cm)
  • Tonsillar exudate
  • Absence of cough 4

Laboratory Testing

• Perform rapid antigen detection test (RADT) and/or throat culture for patients with symptoms suggestive of GAS pharyngitis (persistent fevers, anterior cervical adenitis, tonsillopharyngeal exudates) 4
• Do not routinely obtain C-reactive protein testing, as it does not reliably differentiate bacterial from viral causes 5
• Treat with antibiotics only if GAS is confirmed by testing—do not treat based on clinical suspicion alone 4

Acute Treatment

For Confirmed GAS Tonsillitis

• Penicillin V is the first-line antibiotic: 500 mg twice daily for 10 days in adults; 20-30 mg/kg/day divided twice daily in children 4
• Alternative for penicillin-allergic patients: narrow-spectrum oral cephalosporin, clindamycin, or macrolides/azalides 4
• Antibiotics shorten symptom duration by only 1-2 days but prevent complications including acute rheumatic fever, peritonsillar abscess, and further GAS spread 4

For Viral Tonsillitis (Most Common)

• Provide supportive care with analgesia and hydration 1, 2
• Recommend ibuprofen, acetaminophen, or both for pain control 4
• Consider throat lozenges, warm salt water gargles, or topical anesthetics for symptomatic relief 4
• Do not prescribe antibiotics—70-95% of tonsillitis cases are viral 1, 2
• Do not routinely prescribe corticosteroids despite their modest symptom benefit, given the self-limited nature of the illness and potential adverse effects 4

Recurrent Tonsillitis Management

Watchful Waiting (Strong Recommendation)

Clinicians should recommend watchful waiting for recurrent throat infection if there have been <7 episodes in the past year, <5 episodes per year in the past 2 years, or <3 episodes per year in the past 3 years. 4

• This is a strong recommendation because recurrent pharyngotonsillitis often shows spontaneous reduction over time without surgery 4
• The natural history favors resolution with observation in most cases 4

Tonsillectomy Consideration (Option)

• Tonsillectomy may be recommended if episodes meet Paradise criteria with proper documentation: 4
  • ≥7 episodes in the past year, OR
  • ≥5 episodes per year for 2 years, OR
  • ≥3 episodes per year for 3 years
• Each episode must be documented with sore throat PLUS one of: temperature >38.3°C, cervical adenopathy, tonsillar exudate, or positive GAS test 4
• Each episode must have been adequately treated with antibiotics for proven or suspected streptococcal infections 4

Important Caveats About Tonsillectomy

• Benefits are modest and do not persist beyond the first year after surgery 4
• There is only a balance (not preponderance) of benefit over harm, even when Paradise criteria are met 4
• Surgical risks include bleeding (19% of patients), pain, infection, and anesthesia complications 6
• In adults with recurrent acute tonsillitis, tonsillectomy reduces sore throat days (median 23 vs 30 days over 24 months) and is cost-effective 6

Modifying Factors That May Favor Surgery

Assess for modifying factors in patients who don't meet strict frequency criteria but may still benefit from tonsillectomy: 4

• Multiple antibiotic allergies/intolerance
• PFAPA syndrome (periodic fever, aphthous stomatitis, pharyngitis, adenitis)
• History of >1 peritonsillar abscess
• Personal or family history of rheumatic heart disease
• Severe infections requiring hospitalization

Perioperative Management (If Surgery Indicated)

Pain Management

• Administer a single intraoperative dose of intravenous dexamethasone (strong recommendation) 4
• Counsel patients and caregivers preoperatively about the importance of managing posttonsillectomy pain and the need to anticipate, reassess, and adequately treat pain after surgery 4
• Recommend ibuprofen, acetaminophen, or both for postoperative pain control (strong recommendation) 4

Antibiotic Use

• Do not administer or prescribe perioperative antibiotics to children undergoing tonsillectomy (strong recommendation against) 4

Special Populations

Chronic GAS Carriers

• Do not treat chronic pharyngeal GAS carriers with antibiotics—they are unlikely to spread infection and are at little/no risk for complications 4
• Carriers may be colonized for ≥6 months and experience intercurrent viral pharyngitis that mimics acute streptococcal infection 4
• Do not perform tonsillectomy solely to reduce GAS pharyngitis frequency 4

Obstructive Sleep-Disordered Breathing

• Ask about comorbid conditions that may improve after tonsillectomy in children with tonsillar hypertrophy: growth retardation, poor school performance, enuresis, asthma, behavioral problems 4
• Consider polysomnography before tonsillectomy in high-risk patients (age <2 years, obesity, Down syndrome, craniofacial abnormalities, neuromuscular disorders, sickle cell disease) 4