What if you'd been treated for years for a condition, only to find out that you'd long ago been misdiagnosed?

That's what's happening to a sizable number of Americans who are taking allergy meds (to little effect) when in fact they have chronic rhinosinusitis (CRS), a new study contends.

"We have seen so many patients suffer for so long due to the confusion between allergies and CRS...

Stuffy, sneezing, miserable: folks plagued by chronic sinusitis know the feeling all too well.

Experts at University of Cincinnati Health say it's also an all-too-common affliction, affecting an estimated 14.6% of Americans.

What is chronic sinusitis?

The sinuses are air-filled spaces in the skull at the back of the face, and they rely on mucus to stay moist a...

Testing children with a suspected sinus infection for three common bacteria might cut unnecessary antibiotic prescribing, a new study suggests.

Only half of kids with sinusitis -- inflammation or swelling of the sinuses -- show any improvement with antibiotics, which target bacterial infections, not viral infections, the researchers note.

"When a child comes in with a sore thro...

Could smoking pot somehow help keep sinus problems at bay?

It's possible, suggests a new study that found people who use marijuana may experience fewer bouts of congestion, sneezing and sinus pain than th...

When your sinuses are clogged, you will try anything to ease the congestion: neti pots, bulb syringes, squeeze bottles and even battery-operated pulsed water devices.

But improper use of these nasal irrigation devices can put you at risk for infection, a U.S. Food and Drug Administration expert warns.

The products, which treat congested sinuses, colds and allergies, are safe and eff...