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How To Prevent, Recognize, and Treat Sinus Infections – May 2026
Your sinuses are hollow, air-filled spaces located behind your forehead and cheekbones, between your eyes, and deep behind your nose. Sinus infections, also known as sinusitis, occur when fluid builds up in the sinuses and allows germs, such as viruses and bacteria, to grow. What causes sinus infections? The immediate cause of a sinus infection is the growth of viruses or bacteria in fluid that has built up in the sinuses. But what leads to this fluid buildup? According to the Centers for Disease Control and Prevention (CDC), common risk…



