Throat Pain — History Taking

1. Introduction

2. Core History Structure (SOCRATES + Red Flags)

Site

• Is the pain localized to the throat, or does it radiate?
• Radiation to the ear (otalgia) suggests peritonsillar abscess (PTA) or retropharyngeal pathology — "Throat pain may radiate to the ear."
• Unilateral vs. bilateral pain?

Onset

• Sudden/abrupt onset → strongly suggests Group A β-hemolytic Streptococcus (GABHS): "After an incubation period of 2–5 days, patients develop the sudden onset of sore throat." — Tintinalli's, p. 826
• Gradual onset over days → more suggestive of viral pharyngitis or infectious mononucleosis (EBV), which "often begins with malaise, headache, and fevers before development of exudative pharyngitis."
• "Typically a 1- to 2-day history of worsening sore throat" → epiglottitis / supraglottitis

Character

• Pain on swallowing (odynophagia): present in most bacterial and viral pharyngitis
• Difficulty swallowing (dysphagia) separate from pain?
• "Hot potato" / muffled voice → peritonsillar abscess, retropharyngeal abscess
• Dry, scratchy sensation → more viral

Radiation

• Otalgia (referred pain via the glossopharyngeal nerve) → peritonsillar abscess
• Neck pain → consider retropharyngeal or parapharyngeal deep-space infection

Associated Symptoms — Critical Differentiators

Time Course / Duration

• Untreated GABHS lasts 7–10 days; viral pharyngitis typically resolves in ≤1 week (85% spontaneously)
• Progressive worsening despite treatment → suspect complications (PTA, retropharyngeal abscess, Lemierre syndrome)

Relieving / Exacerbating Factors

• Worsened by swallowing or lying supine → epiglottitis
• Relieved partially by analgesics → less alarming; no relief → consider deep-space infection

Severity

• Ability to swallow saliva / oral intake
• Drooling (inability to swallow saliva) → serious airway threat

3. Epidemiological & Exposure History

• Age: GABHS peaks at 5–15 years; EBV peaks in adolescents/young adults; epiglottitis can occur at any age
• Contact exposure: household/school contacts with streptococcal illness, mono, or COVID-19
• Season: streptococcal pharyngitis is more common in late winter/spring; viral URTIs peak in autumn/winter
• Sexual history: gonococcal pharyngitis — "Most gonococcal infections are asymptomatic" but should be considered in sexually active patients with exudative pharyngitis and no other cause
• Immunisation status: diphtheria-tetanus-pertussis vaccination (rules out/in diphtheria)
• Immune status: HIV, immunosuppression — consider fungal (candidiasis), atypical bacteria

4. Past Medical History

• Prior episodes of pharyngitis / tonsillitis (frequency matters — ≥7 episodes/year or ≥5 episodes/year for 2 years → tonsillectomy criteria per PARADISE criteria, Cummings Otolaryngology)
• Previous peritonsillar abscess (~10–20% recurrence rate)
• Rheumatic fever or heart disease (prior strep complications)
• Allergies — particularly penicillin allergy (determines treatment choice)

5. Red Flag Symptoms (Require Urgent Evaluation)

• Drooling — inability to handle secretions
• Dyspnoea / stridor — especially in supine position
• Trismus — inability to open mouth fully
• Muffled / "hot potato" voice
• Torticollis (neck tilted)
• Toxic / ill appearance, high fever with rigors
• Rapidly progressive course over hours
• Dysphagia worse than odynophagia

6. The Modified Centor Score (Clinical Decision Tool)

• Score 0–1: No testing or antibiotics needed
• Score 2–3: Rapid strep test recommended
• Score 4–5: High probability GABHS; treat empirically or test

7. Summary Framework for History

1. Onset — sudden or gradual?
2. Duration — days/weeks?
3. Odynophagia — swallowing liquids or solids worse?
4. Fever — temperature, chills?
5. Cough present? (absence favours GABHS)
6. Rhinorrhea / hoarseness? (favours viral)
7. Voice change — muffled or "hot potato"?
8. Trismus / drooling? (red flags for PTA/RPA)
9. Stridor / dyspnoea? (red flag — epiglottitis)
10. Neck stiffness / torticollis? (retropharyngeal)
11. Rash? (scarlet fever / mono)
12. Ear pain? (referred — peritonsillar abscess)
13. Exposures — contacts, sexual history
14. Vaccination — diphtheria status
15. Previous episodes / tonsillectomy / rheumatic fever