Dry Cough (Non-Productive Cough)
A dry cough brings up little or no mucus. It is often short-lived after a cold or irritation, but a persistent, worsening, or breathless cough needs assessment.
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Quick Reference Facts
In simple words
A dry cough is a cough that produces little or no mucus. It may feel tickly or irritating in the throat or chest.
Most new coughs improve within three to four weeks. A dry cough can follow a viral infection or be linked to allergy, asthma, reflux, smoking, an irritant, or a medicine.
Common Causes
- A cold, flu, COVID-19, or a cough that lingers after an infection
- Allergy, post-nasal drip, asthma, or reflux
- Smoking, vaping, air pollution, cold air, or strong-smelling irritants
- Some medicines, including ACE inhibitors used for blood pressure or heart conditions
Clinical Red Flags
Seek urgent medical attention at an emergency department or primary care clinic if you present with any of the following symptoms:
- Get urgent help for severe or worsening breathing difficulty, chest pain, coughing blood, or feeling very unwell.
- Arrange a review for a cough lasting more than three weeks, unexplained weight loss, persistent fever, night sweats, or a hoarse voice that does not settle.
- Seek urgent advice sooner if you have a weakened immune system or a significant heart or lung condition.
Lifestyle & Diet Support
Rest, drink fluids, avoid smoke and vaping, and speak to a pharmacist about suitable symptom relief. Honey and warm drinks may soothe adults and children over one year; do not give honey to babies. Do not stop a prescribed medicine without speaking to the prescriber.
Frequently Asked Questions
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Differential Diagnosis Matrix
A clinician may consider the duration, smoking history, medicines, reflux, allergies, asthma symptoms, and infection signs. Persistent cough needs assessment rather than self-diagnosis.
Reference Citations & Evidence Sources
Clinical Guidelines & Consensus Statements
Clinical Reviews & Textbooks
- CIT-0023National Center for Complementary and Integrative Health. "Homeopathy: What You Need To Know." National Institutes of Health (2021).
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