About 1 in 8 adults experiences a sinus infection each year. [2] So if you’re one of them, you aren’t alone. Your ears, nose, and throat are closely connected. The eustachian tubes are small passages that link the middle ear to the back of the nose and upper throat. When these tubes don’t open or close normally, a condition called eustachian tube dysfunction (EDT), you can experience symptoms like ear fullness, pressure, and hearing issues. [3]
Allergies, colds, and infections are common triggers, especially in colder months. Sinus infections fall into this same category because the inflammation and congestion they cause can block the eustachian tubes. That blockage can trap fluid or change the air pressure behind the eardrum, which often leads to:
In most cases, this type of hearing change is temporary and improves as the sinus infection clears and the eustachian tubes reopen. But in some cases, sinus or upper respiratory infections can lead to middle ear infections. [4]
Mild hearing loss is common with middle ear infections, and hearing usually returns to normal after the infection resolves. However, recurrent infections or long-lasting fluid in the middle ear can lead to more serious hearing problems. [4]