When it's blocked, it's no longer able to equalize pressure in the ear and maintain balance in your body. These middle-ear disturbances can cause symptoms of dizziness in people with allergies, colds, and sinus infections.

Can excess mucus cause dizziness?

Sinusitis vertigo is vertigo caused by a buildup of mucus in the Eustachian tube. The Eustachian tube runs from the inner ear to your throat. It's part of the system that helps you maintain your balance. When your sinuses are inflamed during a sinus infection, your sinuses can no longer drain properly.

Can clogged sinuses make you dizzy?

Dizziness. A build-up of pressure in the inner ear, including pressure caused by sinus problems, can sometimes make you feel dizzy.