Common Causes by Pattern
| Cause | Distinguishing Features |
|---|---|
| Asthma | Wheeze, worse with lying flat, history of allergies/atopy |
| GERD (acid reflux) | Worse lying flat, may have heartburn, sour taste |
| Post-nasal drip | Associated with nasal congestion, throat clearing, worse lying down |
| Heart failure | Breathlessness, ankle swelling, worse lying flat (orthopnoea) |
| ACE inhibitor side effect | Dry cough starting after beginning this blood pressure medication |
When to See a Doctor
- Cough persisting more than 3-8 weeks
- Coughing up blood
- Associated weight loss or night sweats
- Significant breathlessness
- Cough affecting sleep significantly over time
Elevating the Head of the BedFor reflux-related night cough, raising the head of the bed by 10-15cm (using blocks under the bed frame, not just extra pillows) can significantly reduce nighttime symptoms.
Can allergies cause night-time cough?
Yes — allergens in bedding (dust mites) or delayed allergic responses can contribute to nighttime cough, particularly in those with underlying asthma or allergic rhinitis.
Medical Disclaimer: This page is for general education only and does not replace professional medical advice. Always consult a qualified healthcare provider.