Everyone has experienced obstruction in the nasal passage or throat that has resulted in difficulty in breathing and persistent coughing. This happens due to the increased phlegm in the lungs. Phlegm is a thick substance that is secreted by the mucous membrane of the respiratory tract, responsible for fighting infections like severe colds.
When it gets accumulated in the throat and chest, the body tries to expel it with coughing. Accumulation of phlegm in the lungs caused by cold, flu, bacterial or viral infections can be the cause for many problems.
Increased presence of phlegm in the lungs can result in fever, weakness, runny nose, persistent cough and difficult breathing. It may also block the bronchial tubes and cause much bigger problems, if you don’t expel and these problems can be very hard to treat with conventional medications.