Cough
What causes chronic cough?
A structured way to think about a cough that will not settle. · 5 min
After an infection, cough can linger. Other contributors include asthma, upper-airway cough, reflux-related cough, medicines such as ACE inhibitors, and less common lung diseases.
Red-flag features — blood, weight loss, night sweats, significant breathlessness — need prompt clinical review.
Online symptom checkers cannot sequence tests safely. A consultation decides what to investigate first.
Educational content only. It does not replace a consultation with Dr. Ravi Charan or another qualified clinician.