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Medically reviewed by Dr. Sajid Iqbal, MBBS, FCPS (ENT)Consultant ENT Specialist, Lahore · Published 28 September 2026
Every winter in Lahore, clinics fill with patients who have suffered from a “bad cold” for three or four weeks. In reality, most of them no longer have a cold — they have developed acute or subacute sinusitis, and taking standard cold tablets has only delayed proper recovery. While colds and sinus infections share early symptoms, their treatments are fundamentally different.
A common cold is a self-limiting viral infection of the upper airway. It typically peaks between days 3 and 5, followed by steady improvement, clearing completely within 7 to 10 days. If your symptoms are still persistent after 10 days, or if you initially felt better and then suddenly relapsed with worse headache and fever (“double sickening”), the lining of your sinus drainage channels has become inflamed and obstructed. That is a sinus infection.
| Sign | Common Cold | Sinus Infection (Sinusitis) |
|---|---|---|
| Duration | Under 10 days | 10 days to 12 weeks (longer = chronic) |
| Facial pressure | Mild, generalized | Intense over cheeks, forehead, eyes; worse bending |
| Nasal discharge | Clear, slightly cloudy | Thick yellow/green, foul taste or throat drip |
| Sense of smell | Reduced briefly | Reduced or lost for weeks |
| Pattern | Steady improvement | Double worsening (better, then worse again) |
Lahore’s dense smog season (October to February) contains high concentrations of particulate matter (PM2.5) that paralyse the microscopic cilia responsible for clearing mucus from your sinus cavities. Combined with seasonal temperature drops and indoor dust mites, the sinus ostia swell shut. Patients with an existing deviated septum or allergic rhinitis are especially vulnerable to recurrent bouts.
Antibiotics are not automatic: The majority of sinus infections begin virally. Antibiotics are only effective when a bacterial secondary infection has taken hold. Taking antibiotics needlessly can disrupt your microbiome and create antibiotic resistance.
You should schedule an in-clinic ENT examination if your symptoms exceed 10 days, if you experience more than 3 episodes per year, or if you notice unilateral (one-sided) obstruction, facial numbness, or vision changes. In the clinic, Dr. Sajid performs high-definition nasal endoscopy to inspect the sinus drainage passages directly. When medicine fails to resolve chronic sinusitis, modern minimally invasive Functional Endoscopic Sinus Surgery (FESS) offers definitive relief.
Acute sinusitis usually resolves within 2–4 weeks with medical therapy. Symptoms lasting more than 12 weeks are classed as chronic sinusitis and require specialist ENT assessment.
Most sinus infections start viral and do not need antibiotics. They are prescribed when symptoms exceed 10 days without improvement, are severe with high fever, or show a classic double-worsening pattern.
Yes, many acute cases clear with saline nasal rinses, steam inhalation, rest, and appropriate decongestants. Recurrent episodes indicate a structural cause such as a deviated septum or polyps.
Not for a first-time acute episode. A CT sinus scan is reserved for chronic, recurrent cases or when surgical planning (FESS) is under consideration.
Same-week appointments with Dr. Sajid Iqbal in Lahore.