Try Stretching the Jaw. Some people are more sensitive to pressure changes in the air. Swelling inside the ear canal can cause a loss of hearing that may result in sounds breaking up in a crackling noise.
Deep Coughing: Start by taking a deep breath. Hold the breath for 2-3 seconds. Use your stomach muscles to forcefully expel the air. Avoid a hacking cough or merely clearing the throat. A deep cough is less tiring and more effective in clearing mucus out of the lungs.
9 Mucus Clearing Techniques for COPD Patients. As a patient diagnosed with chronic obstructive pulmonary disease (COPD), you are faced with a variety of symptoms. These range from shortness of breath, fatigue, loss of appetite, wheezing, chronic cough, chest tightness, and excessive mucus (phlegm) production to name a few.