The eustachian tubes connect the middle ear to the back of the throat, and their function is to equalize the pressure between the middle ear and the outside environment.
If the eustachian tubes become blocked or fail to function properly, it can cause the crackling sound you're experiencing. This dysfunction can be caused by various factors, such as allergies, sinus infections, colds, or changes in altitude.
While I can't provide a definitive solution, here are a few general suggestions that may help alleviate the problem:
Stay hydrated: Drink plenty of fluids to keep the mucus thin and promote proper drainage.
Nasal decongestants: Over-the-counter nasal sprays or decongestant medications may help reduce congestion and open up the eustachian tubes.
Chewing gum or yawning: These actions can help activate the muscles responsible for opening the eustachian tubes and may provide temporary relief.
Applying warm compresses: Placing a warm, damp towel or cloth against your ear can help relieve discomfort and promote relaxation.
Avoiding irritants: Stay away from environments or substances that may irritate your ears, such as cigarette smoke or strong chemicals.
It's important to consult with a healthcare professional, such as an ear, nose, and throat (ENT) specialist or your primary care physician, for an accurate diagnosis and appropriate treatment options. They will be able to assess your specific situation and provide tailored advice or suggest further tests or treatments if necessary.