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 It can cause an accumulation of the phlegm in your lungs and upper respiratory system and result in more serious problems. 2  Coughing helps in removing the mucus from your body. 3  Take some good expectorant instead in order to eliminate yellow phlegm or yellow green phlegm that is being produced.