National Institute of Health. Marvels of Mucus and Phlegm. American Lung Association. Learn About Chronic Cough. Mahashur A. Chronic dry cough: Diagnostic and management approaches. Lung India.
Salt water gargle helps relieve cough and nasal congestion. Mix one teaspoon of salt in a glass of warm water. Swish this around your mouth and spit it out.
A higher-than-normal amount of phlegm can build up in your nose, throat, and lungs when you are sick. This build-up may cause coughing and discomfort. Bloody, brown, white, yellow, or green phlegm ...