What is Bronchitis?
By Dr Ananya Mandal, MD
Bronchitis refers to the inflammation, irritation and infection of the main airways of the lungs. These main airways are generally termed bronchi.
The main symptom is a cough that may produce yellow-grey phlegm or sputum. Additionally there may be symptoms including sore throat, wheezing, blocked sinuses and nose.
https://www.news-medical.net/health/What-is-Bronchitis.aspx
