What Is Acute Bronchitis?
Acute bronchitis is inflammation of the bronchial tubes — the large airways that carry air into the lungs. It is characterized by a cough that may persist for 1–3 weeks and is one of the most common diagnoses made in outpatient medicine, accounting for approximately 10 million provider visits annually in the United States. Despite widespread misconception, acute bronchitis is caused by a virus in more than 90% of cases, most commonly rhinovirus, coronavirus, influenza, respiratory syncytial virus (RSV), or adenovirus.
Because the vast majority of acute bronchitis cases are viral, antibiotics are not indicated and should not be prescribed routinely. Overuse of antibiotics for bronchitis is a leading driver of antimicrobial resistance — a pressing public health concern. However, appropriate evaluation is still important to rule out pneumonia, asthma exacerbation, or secondary bacterial infection, all of which require different management.
our board-certified provider applies evidence-based clinical reasoning to distinguish uncomplicated viral bronchitis from conditions that require more aggressive treatment, sparing patients unnecessary medications while ensuring nothing serious is missed.
Common Symptoms of Bronchitis
Productive or dry cough lasting 1–3 weeks; the defining symptom of bronchitis
Discomfort or heaviness in the chest due to airway inflammation
Mild dyspnea or breathlessness with exertion from airway inflammation
General tiredness from the body's immune response to viral infection
Mild fever (100–101°F) may be present early in the illness; high fever is atypical
High-pitched whistling sound when breathing; indicates bronchospasm in some patients
How Innocre Treats Bronchitis Online
Your visit begins with a comprehensive assessment of symptoms, duration, associated respiratory complaints, vaccination status (influenza, COVID-19), and risk factors for pneumonia. During the video visit, you may be asked to breathe deeply so your provider can listen for audible wheezing or abnormal breathing patterns.
For uncomplicated viral bronchitis, treatment is supportive: adequate hydration (8+ glasses of water daily helps thin secretions), rest, honey for cough (clinically shown to reduce cough frequency in adults and children over 1 year), and over-the-counter dextromethorphan (Robitussin DM, Delsym) for nighttime cough suppression. Guaifenesin (Mucinex) helps loosen chest secretions. Ibuprofen or acetaminophen manage fever and chest discomfort. Staying away from cigarette smoke is essential during recovery.
If wheezing is present, a short-acting albuterol inhaler (bronchodilator) can be prescribed to relieve bronchospasm and reduce cough. Antibiotics will only be prescribed if there is strong clinical evidence of a secondary bacterial infection or pneumonia. This is not routine and represents a small minority of bronchitis cases. If influenza is suspected and diagnosed within 48 hours of symptom onset, antiviral treatment with oseltamivir (Tamiflu) may be appropriate.
⚠️ When to Go to the Emergency Room
Bronchitis is rarely dangerous, but seek emergency care immediately for:
- •High fever above 103°F — raises concern for bacterial pneumonia rather than simple bronchitis
- •Severe or worsening shortness of breath at rest — especially if you cannot complete full sentences or feel you can't get enough air
- •Coughing up blood (hemoptysis) — even small amounts of blood in sputum require urgent evaluation to rule out serious lung conditions
- •Chest pain that worsens with breathing or is severe — can indicate pleuritis, pulmonary embolism, or pneumothorax
- •Signs of low oxygen — bluish lips or fingertips, confusion, extreme difficulty breathing require 911 immediately