Treatment Approach for Dry Cough
Initial Assessment
- The American College of Chest Physicians recommends determining if the cough is acute, subacute, or chronic to guide management approach 1
- The American College of Chest Physicians suggests ruling out serious conditions like pneumonia or pulmonary embolism that may present with cough 1
- Discontinue ACE inhibitors if present, as they can cause persistent dry cough, as recommended by the American College of Chest Physicians 2, 3
- Advise smoking cessation for smokers, as this can resolve cough symptoms within 4 weeks, according to the American College of Chest Physicians 3, 4
- Obtain a chest radiograph to rule out significant pathology, as recommended by the American College of Chest Physicians 3, 4
Treatment Algorithm Based on Common Causes
1. Upper Airway Cough Syndrome (UACS)
- Begin with a first-generation antihistamine/decongestant combination, as recommended by the American College of Chest Physicians 2, 3
2. Asthma and Nonasthmatic Eosinophilic Bronchitis (NAEB)
- For suspected asthma, initiate treatment with inhaled corticosteroids combined with long-acting β-agonists, according to the American College of Chest Physicians 4
- For NAEB, first-line treatment is inhaled corticosteroids, as recommended by the American College of Chest Physicians 1, 4
3. Gastroesophageal Reflux Disease (GERD)
- Initiate empiric treatment with proton pump inhibitors if cough persists after addressing UACS and asthma, as recommended by the American College of Chest Physicians 5, 4
- Add prokinetic therapy if there is little or no response to PPI therapy, according to the American College of Chest Physicians 5, 6
Symptomatic Relief for Persistent Dry Cough
- For symptomatic relief when cough interferes with daily activities or sleep, consider codeine or dextromethorphan-containing antitussives, as recommended by the Thorax journal 7
- Consider low-dose morphine for idiopathic chronic cough that is refractory to other treatments, according to the Thorax journal 7
- Honey may be considered for cough suppression in patients over 1 year of age, as recommended by the Praxis Medical Insights 1
Special Considerations
- For pediatric patients, use pediatric-specific cough management protocols, as recommended by the American College of Chest Physicians 8
- In patients with lung cancer, consider endobronchial brachytherapy for cough due to localized endobronchial disease, according to the American College of Chest Physicians 9
Common Pitfalls to Avoid
- Do not rely solely on cough characteristics for diagnosis, as they have limited diagnostic value, as recommended by the American College of Chest Physicians 3, 1
- Avoid treating only one potential cause, as multiple factors often contribute to chronic cough, according to the American College of Chest Physicians 10, 1
- Consider referral to a cough specialist if cough persists despite sequential trials of therapy for common causes, as recommended by the American College of Chest Physicians 2, 4
Effective Cough Therapy Based on Cited Facts
Introduction to Cough Therapy
- The most effective cough therapy is identifying and treating the specific underlying cause, with targeted therapy being highly successful, whereas currently available nonspecific cough suppressants are severely limited by lack of efficacy and unacceptable side effects, according to the American Thoracic Society 11
Symptomatic Relief Options
- Honey and lemon mixtures are an effective home remedy for symptomatic relief of cough, as recommended by the British Thoracic Society 12