Infiltration of the large and small airways with eosinophils, neutrophils, plasma cells, and lymphocytes is common. |
A cough is a reflex action to clear the airways of mucus, phlegm, irritants or a foreign body. |
They reduce inflammation in your airways and prevent blood vessels from leaking fluid into your airway tissues. |
But the fine water droplets it creates may reach smaller airways in the lower chest. |
It works in the body specifically to reduce any allergic inflammation of the nasal passages, the bronchial airways and the throat. |
Actually, coughing is a healthy reflex that helps clear the airways in the throat and chest. |