Why do respiratory infections spread easily to the sinus and ears?

The infection. will generally attack both the upper respiratory tract and nasal mucosa at the same time. Mucosal inflammation and swelling can cause blockage of the pathways that drain the sinuses and middle ear. Thus, symptoms of pressure build up in the sinuses and ears are common with URI.

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Wondering why respiratory infection spread easily to the sinus and ears?

Mucosa. Hello. The reason your sinuses, ears and respiratory airways get infected at the same time is because the lining or mucosa is continuous. They are comprised of the exact same cells, mucus and pathogens. It is very hard to look at magnified areas of the ears, nose, throat and airways and differentiate one from the other. Since they are continuous, inflammation or infection can easily travel. Read more...