A sinus infection, also known as sinusitis, happens when the spaces inside your nose and head (called sinuses) become swollen ...

Medically reviewed by Alicen Nelson MD, MPH Allergic rhinitis (allergies or hay fever) and sinusitis (sinus infections) can cause similar symptoms, making them difficult to tell apart. However, they ...

The pressure building in your sinuses creates that characteristic pain that settles right behind your eyes or across your forehead. However, sinus infections often take head pain to the next level ...

After Hunter became too weak to walk to classes, she underwent a blood test. When doctors received the results, they urged ...

which causes them to increase in size and enlarge the appearance of the eyes and face. This type of fungal sinus infection typically requires surgery, followed by medical therapy to prevent ...

Untreated bacterial sinus infections can occasionally spread beyond the sinuses, potentially affecting nearby structures including the eyes, brain, or bones in rare but serious cases. Similarly ...