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.
1 Your lungs and airways have more mucus, and the mucus is not cleaned out well. 2  So the mucus stays in your airways, clogs them, and makes you cough. 3  This extra mucus can easily get infected. 4  Your lungs and airways get irritated and inflamed.