Treatment of Throat Pain
For most patients with throat pain, ibuprofen or paracetamol (acetaminophen) should be the primary treatment, with antibiotics reserved only for those with severe presentations (3-4 Centor criteria) who have confirmed or highly suspected bacterial infection. 1
Initial Symptomatic Management
All patients should receive analgesics as first-line therapy:
- Ibuprofen or paracetamol are equally recommended for relief of acute sore throat symptoms with the highest level of evidence (A-1). 1
- Research suggests ibuprofen may have the best benefit-risk profile among available analgesics. 2
- Dosing: Ibuprofen 400-600mg every 6-8 hours as needed, or acetaminophen 500-1000mg every 6 hours as needed. 3
Local anesthetics can be considered as adjunctive therapy:
- Lidocaine (8mg), benzocaine (8mg), or ambroxol (20mg) lozenges have confirmed efficacy in clinical trials, with ambroxol showing the best documented benefit-risk profile. 2
Risk Stratification Using Centor Criteria
Before considering antibiotics, assess the patient using Centor criteria (1 point each): 1
- Tonsillar exudates
- Tender anterior cervical lymphadenopathy
- Fever
- Absence of cough
Clinical decision algorithm based on score:
- 0-2 Centor criteria: Do NOT prescribe antibiotics. These patients have low likelihood of bacterial infection and antibiotics provide no benefit. 1, 4
- 3-4 Centor criteria: Consider rapid antigen testing (RAT) or throat culture. If positive or testing unavailable, discuss potential modest benefits versus risks with patient. 1
When Antibiotics Are Indicated
Antibiotics should only be prescribed for patients with 3-4 Centor criteria AND confirmed or highly suspected Group A streptococcal infection: 1
- First-line: Penicillin V 250mg twice or three times daily for 10 days (A-1 evidence). 1, 4
- Alternative: Amoxicillin for patients who prefer less frequent dosing. 5, 6
- For penicillin allergy (non-anaphylactic): First-generation cephalosporins. 6
- For anaphylactic penicillin allergy: Use clarithromycin, though note significant resistance exists in some U.S. regions to azithromycin and clarithromycin. 6
Critical caveat: Even in confirmed bacterial pharyngitis, antibiotics only modestly shorten symptom duration and must be weighed against side effects, microbiota disruption, antimicrobial resistance, and costs. 1, 4
What Antibiotics Do NOT Accomplish
Antibiotics should NOT be prescribed to prevent complications in low-risk patients: 1
- Do not prevent rheumatic fever or acute glomerulonephritis in patients without previous rheumatic fever history (A-1 evidence). 1, 4
- Do not prevent suppurative complications such as quinsy (peritonsillar abscess), acute otitis media, cervical lymphadenitis, mastoiditis, or acute sinusitis in most cases (A-1 to A-3 evidence). 1, 4
Role of Corticosteroids
Corticosteroids are NOT routinely recommended but can be considered in specific circumstances: 1, 7
- Only for adults with severe presentations (3-4 Centor criteria) in conjunction with antibiotic therapy. 1, 7
- Dosing: Single oral dose of dexamethasone 10mg. 7
- The benefit is modest and may be considerably smaller in typical primary care populations where most patients do not have severe sore throat. 7
- No benefit demonstrated in children. 7
Diagnostic Testing Approach
Rapid antigen testing (RAT) should be targeted, not routine: 1
- Use RAT only in patients with 3-4 Centor criteria where bacterial infection is more likely. 1
- Do NOT use RAT in patients with 0-2 Centor criteria as testing is unnecessary. 1, 4
- If RAT is performed and negative, throat culture is NOT necessary in adults. 1
- In children and adolescents, throat culture is recommended after negative RAT. 6
- Routine throat culture is not necessary for diagnosis. 1
Treatments to AVOID
The following have no role in routine sore throat management:
- Zinc gluconate: Not recommended (B-2 evidence). 1, 4
- Herbal treatments and acupuncture: Inconsistent evidence (C-1 to C-3). 1, 4
- Biomarkers (CRP, procalcitonin): Not necessary for routine assessment (C-3 evidence). 1
- Local antibiotics or antiseptics: Should not be recommended due to mainly viral origin and lack of efficacy data. 2
Red Flags Requiring Immediate Evaluation
Refer urgently if patient develops: 3
- Severe difficulty swallowing or breathing
- Unilateral tonsillar swelling with uvular deviation (peritonsillar abscess)
- Drooling or muffled voice
- High fever with severe pharyngitis that is progressively worsening
Patient Education Points
Educate all patients that: 4, 8
- Most sore throats are viral and self-limiting within 7 days. 4, 8
- Mean duration is 7 days regardless of treatment. 8
- Antibiotics do not help viral infections and have potential harms. 4, 8
- Symptomatic treatment with ibuprofen or paracetamol is the most effective approach for symptom relief. 4, 8
Common Pitfall to Avoid
The most significant pitfall is antibiotic overprescription: Nationally, up to 70% of patients with sore throats receive antibiotics, while only 20-30% are likely to have bacterial pharyngitis. 4 This occurs because physicians often greatly overestimate the probability of bacterial infection. 4 Use clinical scoring systems consistently to avoid this error. 1