chronic dry cough – MySymptom

What Does It Mean When You Have a Persistent Dry Cough That Lasts for Weeks?

1. Introduction A persistent dry cough lasting beyond three weeks is most commonly caused by post-viral airway hyperreactivity, cough-variant asthma, silent acid reflux, or chronic post-nasal drip. Unlike a productive cough that clears mucus and phlegm from the lower respiratory tract, a dry cough is non-productive, producing a hollow, hacking sound. This symptom indicates that … Read more

When should I worry about a persistent dry cough that lasts for weeks?

1. Introduction A persistent dry cough lasting longer than eight weeks is clinically classified as chronic and should be systematically evaluated by a medical professional. While an acute cough is a normal, vital biological defense mechanism designed to aggressively clear the airways of sudden irritants, mucus, or foreign bodies during a brief infection, an unyielding, … Read more