It's that time of year. Allergies and clogged ears are common. The spring brings new plant growth which is created by pollination. Pollen in the atmosphere gets into our air passages and causes inflammation and even infections in some cases. The reaction of our sinus membranes when the pollen enters our airways is to swell up. Sometimes it gets deep in our sinus cavity, near the back of our throat, where the Eustachian tube empties at the end of our ear canal. Did you know the ear canal drains into the back of our throat behind the uvula? The nasal canal drains into our throat behind the uvula as well. To learn why regular nasal sprays cannot reach the Eustachain tube when used as directed read this article. To learn why allergies and colds cause clogged ears keep reading below.