Cough in Adults

Common Causes

• Upper respiratory infections — Colds or flu viruses might irritate airways, leading to cough in adults, as research suggests (Cleveland Clinic).
• Allergies or postnasal drip — Pollen, dust, or pet dander could cause mucus to drip down the throat, triggering cough.
• Acid reflux (GERD) — Stomach acid backing up may irritate the throat, which might lead to chronic cough.
• Asthma or COPD — Chronic lung conditions could cause ongoing cough, especially with triggers like smoke.
• Medications like ACE inhibitors — Some blood pressure drugs might dry out airways, prompting a dry cough in some cases.

Learn More

For a full overview of this symptom, including home remedies and when to see a doctor, read our complete guide on Cough.