Acute tonsillitis treatment
I'll start by reading the medical library skill, then search for acute tonsillitis treatment information.
Reading File
Now I'll search the medical library and PubMed simultaneously for comprehensive tonsillitis treatment information.
Finding Sources
Searching PubMed
"tonsillitis" AND "treatment"
Excellent sources found. Now I'll read the most clinically relevant sections in parallel.
Reading File
Reading File
Reading File
Good data from Scott-Brown's and Bailey & Love. Now let me get the remaining sections and the Tintinalli section for emergency medicine perspective.
Reading File
Reading File
Finding Sources
Now let me get the Cummings Otolaryngology section and the tonsillectomy criteria from Scott-Brown's for a complete picture.
Reading File
Finding Sources
Let me get the Paradise criteria and tonsillectomy evidence sections for completeness.
Reading File
I now have comprehensive data from multiple authoritative sources. Let me compile the full answer.
Acute Tonsillitis - Treatment
Aetiology and Microbiology
Acute tonsillitis is caused by both viruses and bacteria, either separately or together. The most common bacterial pathogen is Group A Beta-Haemolytic Streptococcus (GABHS / Streptococcus pyogenes), accounting for 10-23% of cases. Viruses account for the majority, with rhinovirus being most prevalent. Other organisms include:
- Viral: Adenovirus, EBV (infectious mononucleosis), HSV, parainfluenza, influenza, Coxsackievirus
- Bacterial: Fusobacterium necrophorum (5-10%), Group C/G Streptococcus, Arcanobacterium haemolyticum, rarely N. gonorrhoeae, C. diphtheriae
There is no evidence that viral tonsillitis is more or less severe than bacterial - both tend to resolve quickly without treatment in most cases.
- Scott-Brown's Otorhinolaryngology Head & Neck Surgery, Vol 2
- Tintinalli's Emergency Medicine
Treatment Overview
1. Symptomatic / Conservative (First-Line)
Management is mainly symptomatic until symptoms subside:
| Measure | Details |
|---|---|
| Analgesia | Paracetamol and/or NSAIDs for pain and fever relief. Aspirin should be avoided. |
| Hydration | Adequate fluid intake, especially in children |
| Saline gargles | Soothing, especially in older patients |
| Rest | General supportive care |
Most cases resolve within a few days with supportive care alone.
2. Antibiotics
Antibiotics shorten the illness and may reduce the risk of sequelae (rheumatic fever, peritonsillar abscess). They are recommended if:
- No improvement after 48-72 hours of symptomatic treatment
- Clinical concern about severity at presentation (start early)
Antibiotic of choice:
| Scenario | Drug | Duration |
|---|---|---|
| First-line (bacterial GABHS) | Phenoxymethylpenicillin (Penicillin V) or Benzylpenicillin | 10 days |
| Alternative / penicillin allergy | First-generation cephalosporin (e.g. cefalexin), clindamycin, clarithromycin, or azithromycin | 10 days |
| Penicillin failure | Amoxicillin/clavulanic acid, cephalosporins, or clindamycin | - |
| Severe (IV) | Benzylpenicillin IV or IV cephalosporin | - |
Important: Ampicillin and amoxicillin should be avoided if infectious mononucleosis (EBV) is suspected - they cause a widespread maculopapular rash in ~90% and ~30% of EBV patients respectively.
Penicillin failure occurs in 7-37% of cases. Macrolide resistance is also increasing worldwide. Recent evidence suggests macrolides and cephalosporins may be more effective as first-line agents in some populations.
- Cummings Otolaryngology Head and Neck Surgery
- Bailey and Love's Short Practice of Surgery, 28th Ed.
3. Corticosteroids (Adjunct Therapy)
Corticosteroids (oral or intramuscular) in addition to antibiotics expedite resolution of pain, especially in severe cases:
-
Provide symptomatic pain relief in sore throat
-
A short course is particularly beneficial in EBV tonsillitis with significant swelling threatening the airway or causing swallowing difficulty
-
Should be given in combination with antibiotics, not alone
-
Scott-Brown's Otorhinolaryngology Head & Neck Surgery, Vol 2
4. Specific Situations
Infectious Mononucleosis (EBV):
- Avoid ampicillin/amoxicillin
- High-dose IV penicillin or cephalosporins if hospitalized
- Corticosteroids if significant tonsillar swelling with airway/swallowing compromise
- Antiviral agents (aciclovir) are debatable - consider only in severe cases
Peritonsillar Abscess (Quinsy) - Complication:
- IV high-dose penicillin or cephalosporin
- Needle aspiration of pus or incision and drainage under local anaesthesia
- If EBV excluded and recurrent: consider interval tonsillectomy
5. Surgical Treatment - Tonsillectomy
Tonsillectomy is considered for recurrent tonsillitis. The widely accepted threshold is the Paradise Criteria:
| Criterion | Threshold |
|---|---|
| Frequency (within 1 year) | ≥ 7 episodes |
| Frequency (over 2 years) | ≥ 5 episodes/year |
| Frequency (over 3 years) | ≥ 3 episodes/year |
Children who meet these criteria benefit significantly from tonsillectomy (reduced episodes, improved quality of life, reduced healthcare costs - NESTAC trial). Children with milder/less frequent disease do not show significant advantage over watchful waiting.
There is no evidence of benefit from long-term antibiotics for recurrent tonsillitis.
- Scott-Brown's Otorhinolaryngology Head & Neck Surgery, Vol 2
Complications to Prevent/Recognize
| Complication | Type |
|---|---|
| Peritonsillar abscess (quinsy) | Local suppurative |
| Parapharyngeal / retropharyngeal abscess | Local suppurative |
| Septicaemia | Systemic |
| Rheumatic fever | Non-infective (streptococcal) |
| Post-streptococcal glomerulonephritis | Non-infective (streptococcal) |
| Lemierre's syndrome | Fusobacterium - thrombophlebitis of internal jugular vein |
Recent Evidence (2024-2026)
Two relevant systematic reviews provide updated guidance:
- An Italian intersociety consensus (2024) on acute pharyngitis treatment in children - PMID 39501298 - supports targeted antibiotic use guided by clinical scoring.
- An umbrella review in Lancet Infectious Diseases (2025) on optimal antibiotic duration for upper respiratory tract infections - PMID 39243792 - supports shorter antibiotic courses may be effective, potentially updating the traditional 10-day recommendation.
These findings are consistent with the textbook guidance but suggest antibiotic stewardship (using clinical scoring tools like Centor/FeverPAIN before prescribing) is increasingly important.
This is a shared conversation. Sign in to Orris to start your own chat.