Sinus congestion occurs when the tissues lining the nasal passages become swollen or inflamed, often due to an infection, allergies, or irritants. This swelling can block the normal flow of mucus, leading to a buildup that causes discomfort and pressure in the face, particularly around the forehead, cheeks, and eyes. Common symptoms of sinus congestion include a stuffy or runny nose, difficulty breathing through the nose, and a reduced sense of smell or taste. Treatment options may involve over-the-counter medications, nasal sprays, or home remedies to relieve symptoms and reduce inflammation.