The cough that lasts three weeks is one of the most common reasons New Yorkers consider whether they need to be seen. Most of it is post-viral or acute bronchitis — neither requires antibiotics. The clinical question that matters is when the cough crosses into pneumonia territory.
Acute bronchitis: what it is and isn’t
Acute bronchitis is inflammation of the bronchial tubes, almost always viral, lasting 1-3 weeks with cough as the dominant symptom. Productive cough is common. Low-grade fever is possible. Chest discomfort with cough is common. Antibiotics do not change the course.
The cough lingers because the airway irritation persists after the virus is gone. Three weeks of post-viral cough is normal. Six weeks is not.
Pneumonia: the signs that change the read
Pneumonia is suspected when cough is accompanied by:
— Sustained fever (over 101°F) beyond the first few days
— Shortness of breath at rest or with minimal exertion
— Sharp chest pain that worsens with breathing
— Productive cough with rust-colored or blood-tinged sputum
— Confusion or significant fatigue out of proportion to a typical cold
Any combination of these warrants clinical evaluation, often with chest imaging.
Home management for acute bronchitis
Hydration, rest, honey (effective for cough suppression in adults), and OTC cough suppressants for sleep if cough is disrupting it. Albuterol inhalers help only if there is a bronchospasm component (wheezing) — they do not help typical bronchitis cough.
When a Sickday clinician matters
A licensed clinician evaluation makes sense when fever persists past 3-5 days, when shortness of breath develops, when chest pain is sharp or pleuritic, or when symptoms are not following the expected viral arc. The clinician’s job is to distinguish bronchitis (no antibiotics, supportive care) from pneumonia (likely antibiotics, possibly imaging) — and that distinction is exactly the kind of decision that benefits from clinical eyes on the patient.
