---
title: "Persistent Cough: Causes, Red Flags, Diagnosis, Treatment"
description: "Persistent cough usually comes from airway irritation like postnasal drip, reflux, asthma, or infection. Learn next steps and labs, no referral."
canonical: "https://www.vitalsvault.com/conditions/persistent-cough"
last-updated: 2026-08-22
---

# Persistent Cough: Causes, Red Flags, Diagnosis, Treatment

> Persistent cough usually comes from airway irritation like postnasal drip, reflux, asthma, or infection. Learn next steps and labs, no referral.

---

Canonical HTML: https://www.vitalsvault.com/conditions/persistent-cough
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