What causes ear pain?

The inner ear, or Eustachian tube, can become clogged with mucus from sinus cavities, caused by excess mucus from allergies and colds and sinusitis. Swelling in the nasal, head and ear sinuses is common. If swelling occurs in the ear sinuses or Eustachian tube, mucus or even pus can become trapped there, causing a feeling of pain, swollen, clogged, plugged, sore, congested ears, poor hearing, or even a feeling of water sloshing deep in the head. This solution can be done at home, is not expensive, and relieves Eustachian tube swelling so that the mucus can drain naturally. == ==