Treatment for Acute Viral Upper Respiratory Infection with Cough
For this acute viral upper respiratory infection (common cold) with non-purulent cough lasting 10 days, symptomatic treatment with a first-generation antihistamine/decongestant combination is the most effective approach, while antibiotics should be avoided entirely. 1
Antibiotics Are Not Indicated
- Antibiotics provide no benefit for the common cold or acute purulent rhinitis and cause significant adverse effects—routine use is not recommended. 1
- This presentation (nasal congestion, headache, runny nose with non-purulent sputum for 10 days) is consistent with acute viral rhinosinusitis, not bacterial infection. 1
First-Line Symptomatic Treatment
Antihistamine-Decongestant Combinations (Most Effective)
- Antihistamine-analgesic-decongestant combinations provide general benefit in adults with the common cold and are the most effective first-line treatment. 1, 2
- Specific effective combinations include:
- First-generation antihistamines work primarily through anticholinergic properties to reduce secretions and cough, not through antihistamine effects. 2, 3
- Start with once-daily dosing at bedtime for a few days before increasing to twice-daily to minimize sedation. 2, 3
- Most patients improve within days to 2 weeks of initiating therapy. 2
Decongestants Alone
- Multiple doses of oral decongestants (pseudoephedrine) have a small positive effect on nasal congestion in adults without increasing short-term adverse events. 1, 4
- Topical nasal decongestants (oxymetazoline, xylometazoline) can be used for rapid relief but must be limited to 3-5 consecutive days maximum to avoid rhinitis medicamentosa (rebound congestion). 2, 5, 6
Analgesics for Symptom Relief
- NSAIDs (ibuprofen, naproxen) significantly improve headache, ear pain, muscle/joint pain, and sneezing, though they do not reduce total symptom score or duration. 1
- Paracetamol (acetaminophen) may help relieve nasal obstruction and rhinorrhea but does not improve other cold symptoms including cough. 1
Cough Suppression
- Dextromethorphan or codeine can provide short-term symptomatic relief of coughing. 1, 7
- Central cough suppressants are recommended for short-term use in chronic bronchitis but are also reasonable for bothersome acute viral cough. 1
Treatments That Do NOT Work
- Nasal corticosteroids do not provide symptomatic relief for the common cold. 1
- Antihistamines alone have only limited short-term benefit (days 1-2) on overall symptoms in adults, with no clinically significant effect on nasal obstruction, rhinorrhea, or sneezing. 1
- Newer-generation antihistamines (loratadine, fexofenadine, cetirizine) with or without pseudoephedrine are ineffective for acute cough in postviral upper respiratory infection. 2, 3
- Steam/heated humidified air shows no benefits. 1
- Vitamin C supplementation does not help once symptoms have started. 1
Adjunctive Therapies to Consider
- Ipratropium bromide nasal spray effectively reduces rhinorrhea and nose-blowing frequency, though it does not help nasal congestion. 1
- Nasal saline irrigation may provide benefits for relieving acute URTI symptoms, mainly in children, and is considered a reasonable option. 1
- Probiotics may be more beneficial than placebo for preventing acute URTIs, though evidence quality is very low. 1
Critical Pitfalls to Avoid
- Do not prescribe antibiotics—they cause harm without benefit in viral URIs. 1
- Do not use topical nasal decongestants beyond 5 days—this causes rhinitis medicamentosa. 2, 5, 6
- Do not prescribe newer-generation antihistamines for cough—they lack the anticholinergic properties needed for efficacy. 2, 3
- Monitor blood pressure if using decongestants, as they can worsen hypertension and cause tachycardia. 2
- Be cautious with first-generation antihistamines in patients with glaucoma, urinary retention, or benign prostatic hypertrophy. 2, 3
When to Reassess
- If symptoms persist beyond 2 weeks despite adequate treatment, consider evaluation for bacterial sinusitis, upper airway cough syndrome, or other complications. 2
- Bacterial sinusitis is suggested by worsening symptoms after initial improvement, high fever (>39°C), purulent nasal discharge, and facial pain lasting >10 days. 1