Treatment of Coryza (Common Cold)
Do not prescribe antibiotics for coryza—this is a self-limited viral illness that resolves without antimicrobial therapy, and antibiotics provide no benefit while increasing the risk of adverse effects. 1
Symptomatic Management Strategy
First-Line Analgesics and Antipyretics
- Ibuprofen 400 mg every 4-6 hours (maximum 1200 mg/day for OTC use) is specifically recommended for fever, headache, and body aches associated with viral upper respiratory infections 2, 3
- Acetaminophen is an equally effective alternative for patients with contraindications to NSAIDs 1
- Never use aspirin in children under 16 years due to the risk of Reye's syndrome 2, 3
Nasal Congestion Relief
- Combination antihistamine-analgesic-decongestant products provide significant symptom relief in 1 out of 4 patients 1
- Pseudoephedrine temporarily relieves nasal congestion due to the common cold 4
- Topical decongestants (e.g., xylometazoline) can be used but limit to 3-5 consecutive days maximum to avoid rebound congestion and rhinitis medicamentosa 1
- Saline nasal irrigation may provide modest symptomatic benefit 1
Additional Symptomatic Therapies
- Inhaled ipratropium bromide for rhinorrhea 1
- Antitussives for cough control 1
- Zinc supplements (if started within 24 hours of symptom onset) may reduce symptom duration, though adverse effects include nausea and bad taste 1
Supportive Care Measures
- Adequate rest and hydration 1
- Warm facial packs and steamy showers 1
- Sleeping with head of bed elevated 1
- Avoid smoking and environmental irritants 1
Expected Clinical Course and Follow-Up
Duration of Symptoms
- Symptoms typically last up to 2 weeks and patients should be counseled that this is normal 1
- Complete resolution without intervention is the expected outcome 1
Red Flags Requiring Immediate Reassessment
Instruct patients to return or seek urgent care if they develop:
- Difficulty breathing or painful/labored respiration 3
- Altered mental status (somnolence, disorientation, confusion) 3
- Persistent fever for 4-5 days without improvement or with worsening symptoms 2, 3
- Symptoms persisting beyond 10 days (suggests possible bacterial sinusitis) 1
- "Double worsening" pattern where symptoms improve then worsen after 5-10 days (suggests bacterial sinusitis) 1, 5
- High fever (>39°C) with purulent nasal discharge and facial pain for ≥3 consecutive days (suggests bacterial sinusitis) 1
Critical Pitfalls to Avoid
Antibiotic Misuse
- Antibiotics do not prevent complications of the common cold (bacterial sinusitis, asthma exacerbation, otitis media) 1
- The number needed to harm from antibiotics (NNH = 8) exceeds any potential benefit in viral upper respiratory infections 1
- Reserve antibiotics exclusively for patients meeting specific criteria for bacterial sinusitis (symptoms >10 days, severe symptoms with high fever, or double worsening pattern) 1
Medication Safety
- Antihistamines alone have more adverse effects than benefits in non-allergic patients and may worsen congestion by drying nasal mucosa 1
- Avoid prolonged use of topical decongestants beyond 3-5 days 1
- Use ibuprofen at the lowest effective dose for the shortest duration necessary 2, 3
Distinguishing Viral from Bacterial Infection
- Coryza (rhinorrhea), cough, and conjunctivitis are viral features that argue against bacterial infection 1
- Purulent nasal discharge alone does not indicate bacterial infection—it is normal in viral colds 1
- Bacterial sinusitis requires specific timing criteria (>10 days duration, severe onset, or double worsening), not just purulent discharge 1, 5