What Are Sinuses?

Sinuses and Congestion

Sinuses are a system of interconnected hollow spaces in the skull and link to the nasal passages by small channels. Sinuses help humidify the air we breathe and enhance our voices. Air entering through the mouth and nose flows through the channels, which, like the nose, are lined with soft tissue called “mucosa.”

"Sinuses help humidify the air we breathe and enhance our voices."

By adulthood each person’s sinus pathways are unique. Everyone has four sinus cavities, each with a connection to the nasal passage:

The largest are the maxillary sinuses, behind the cheekbones
The frontal sinuses are in the center of the forehead
The ethmoid sinuses are between the eyes
The sphenoid sinuses are in bones behind the nasal cavity

Sinus Inflammation

Irritants, viral infection or allergies can all cause the mucosal tissue in the sinuses to swell. The swelling can block the channels to the nasal cavity and affect sinus drainage. This inflammation can increase the risk of a bacterial sinus infection and give the sensation of your sinus passages being congested.

Follow Advil

Follow Children's Advil

Save over $70 with Haleon Huddle.

Haleon Huddle unlocks exclusive savings on brands including Advil, Sensodyne, Centrum and more.

*All fields required

First Name*

Valid Email*

Zip Code*

I consent to the Haleon group of companies and brands (“Haleon”) collecting my Consumer Health Data. Continue reading...I understand that my Consumer Health Data may be used by Haleon as described in our Washington Consumer Health Data Notice, where I can find the categories of data collected, the purposes of collection, and with whom we may share your information. I understand that if I choose not to consent to Haleon’s collection of my Consumer Health Data, I may not be able to receive certain marketing or informational materials or other forms of communication directly from Haleon or participate in surveys and focus groups. I further understand that I may withdraw my consent at any time as described in the Haleon Washington Consumer Health Data Notice or the Haleon Privacy Notice.

I consent to the Haleon group of companies and brands (“Haleon”) sharing my Consumer Health Data with third parties continue reading... as described in the Washington Consumer Health Data Notice. I understand that I may withdraw my consent at any time as described in the Haleon Washington Consumer Health Data Notice or the Haleon Privacy Notice.

By Signing up for Advil newsletters, You are certifying you are 18 years of age and older.

Check your inbox for a confirmation email from Haleon Huddle to receive coupons!

Trade marks are owned by or licensed to the Haleon group of companies.

PM-US-ADV-21-00474