Bronchitis is an inflammation of the bronchial tubes, the airways that carry air to your lungs. This inflammation causes them to narrow, making it difficult to breathe and leading to a persistent cough.
Causes of Bronchitis
Bronchitis is typically caused by viral infections, most commonly the same viruses that cause the common cold or influenza. These viruses inflame the lining of your bronchial tubes.
- Viral Infections: Rhinoviruses, influenza viruses, and respiratory syncytial virus (RSV) are frequent culprits. Bacterial Infections: While less common than viral bronchitis, bacterial infections can also cause the condition. Mycoplasma pneumoniae and Chlamydophila pneumoniae are examples of bacteria that can trigger bronchitis. Irritants: Exposure to irritants such as cigarette smoke, air pollution, or dust can inflame the bronchial tubes, leading to bronchitis. This is often referred to as irritant-induced bronchitis.
Types of Bronchitis
Acute Bronchitis: This is the most common type and usually lasts for a few weeks, resolving on its own. Chronic Bronchitis: This is a long-term condition characterized by a persistent cough with mucus for at least three months a year, for two consecutive years. This is strongly linked to smoking.
Understanding the cause of your bronchitis helps determine the best course of treatment. While doxycycline may be used in some cases of bacterial bronchitis, it’s crucial to consult a doctor for diagnosis and treatment guidance.
