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.
How to Clear the Throat of Mucus. There can be many causes of mucus in the throat such as colds, allergies, gastroesophageal reflux and sinus infections. Throat mucus can be uncomfortable, make it difficult to swallow, cause constant throat-clearing or even drain into the stomach, causing nausea and bellyaches. Clear Throat Mucus.