(Photo credit: iStock / Getty Images) Healthy sinuses are filled with air. But when they become blocked and filled with fluid, germs can grow and cause an infection. Conditions that can cause ...

When the sinuses are inflamed, drainage is blocked and the sinuses fill with mucus. This can cause a sensation of pain and pressure along with a stuffy nose and sometimes a fever. Acute sinus ...

Sinusitis, or a sinus infection, can cause a stuffy or runny nose, a decreased sense of smell, and other symptoms. You can usually manage the symptoms at home with a decongestant. The sinuses are ...

Medically reviewed by Sukaina Hasnie, MD If you're experiencing pain and pressure in your sinuses, you might be quick to ...

Lying behind your eyebrows, behind your cheekbones, and between your eyes are your sinuses — air-filled cavities lined with a mucous membrane that filters and humidifies the air you inhale.

Exposure to certain allergens, such as dust, pollen, and animal dander, can cause sneezing and itching, which can lead to inflammation and a buildup of mucus. This buildup can block the sinuses ...

ANSWER: Acute sinusitis causes the spaces inside your nose — the sinuses — to become inflamed and swollen. This interferes with drainage and causes mucus to build up. With acute sinusitis ...

Dr. Ralph Metson answers the question: 'Causes, Symptoms Of Sinus Infections?' — -- Question: What causes sinus infections and what are the most common symptoms of sinus infections?

Sinusitis can cause facial pressure, sinus headache, and other symptoms. Treatment may depend on the cause. A sinus infection, also known as sinusitis or rhinosinusitis, occurs when your nasal ...

You've had a stuffy nose for what feels like ages. It's gone on for more than just a few days, so you know it's not a cold. But which is it: sinusitis or allergies? They have similar symptoms, so ...

Contagious viruses are among the most common causes of sinus infections (sinusitis). You might develop a sinus infection as a result of a cold that persists longer than 10 days. Sinus infections ...

Your sinuses are air-filled spaces in your skull behind your cheeks, eyebrows, and jaw. Sinusitis, or a sinus infection, happens when you have swollen or inflamed tissues within the sinuses.