Pressure in ears and throat. Antibiotics may also be necessary. There are several ways to damage the TMJ, including trauma, teeth grinding, and excessive gum chewing. You may experience pain, itching, redness, and clear fluid drainage or a discharge of pus. If you're experiencing pain in your sinuses or other symptoms, you could have a sinus infection. Nasopharyngeal Cancer. The glossopharyngeal nerve is located in the head and neck, and problems with it can cause this rare, painful condition. A doctor should remove any ear obstructions. This occurs when the tonsils become infected.