There can be many reasons behind excessive production of phlegm and its accumulation in the chest:
1. Infections
Viral infections such as colds and influenza (flu) are the main cause of phlegm. In addition, bacterial infections such as bronchitis and pneumonia also cause the airways to fill with phlegm.
2. Allergies
When dust particles, smoke, pollen, and pet dander are inhaled, the airways are irritated and the body produces excess phlegm as a defense mechanism.
3. Asthma
People with asthma often have a sudden inflammation of the airways. This obstructs airflow and causes the production of thick phlegm.
4. Smoking
Toxins like tar build up in the lungs of smokers. When the body tries to expel this, it causes a chronic cough known as ‘Smoker’s Cough’.
5. Acid Reflux (GERD)
This is a condition where stomach acid comes up into the throat. This acid irritates the throat and the body produces mucus to deal with it. This is also called ‘silent reflux’.
6. Air Pollution
Constant exposure to strong odors, chemicals, and air pollution can affect lung health and cause chronic cough.
Pay attention to the color of the phlegm:
White/clear: Common cold or allergies.
Yellow/green: A sign of a bacterial infection.
Red/brown: There may be traces of blood in the phlegm (see a doctor immediately).
Solutions:
Drink plenty of water: This will help loosen phlegm.
Inhale steam: This is good for clearing chest and sinus congestion.
Gargle with salt water: This will help reduce throat discomfort.