Sinus Infection (Sinusitis): Causes, Symptoms & Treatment
Sinuses are structures inside your face that are normally filled with air. Bacterial infections, viral infections and allergies can irritate them, causing them to get blocked and filled with fluid. This …
Sinus Infection: Symptoms, Causes, and Treatment - Healthline
Jan 28, 2025 · A sinus infection occurs when your nasal cavities become swollen, infected, or inflamed. Learn about the symptoms and how to treat them.
Sinus Infection (Sinusitis): Symptoms, Causes, Duration, and ... - WebMD
Acute sinusitis is typically caused by the common cold, a viral infection. You should feel better within 10 days, though symptoms could stick around as long as 4 weeks. You’ll experience the...
Acute sinusitis - Symptoms and causes - Mayo Clinic
Aug 29, 2023 · Acute sinusitis can make it hard to breathe through the nose. The area around the eyes and the face might feel swollen. There might be throbbing face pain or a headache. The …
Sinus infection: 11 symptoms and treatments - Medical News Today
Jul 16, 2025 · Sinus infections, or sinusitis, occur when a virus of bacteria enters the sinuses. Read on for a list of common symptoms and treatments.
Sinus Infection Basics | Sinus Infection | CDC
Apr 17, 2024 · When you have a sinus infection, one or more of your sinuses becomes inflamed. Fluid builds up, which can cause congestion and runny nose.
Sinus Infections and What Causes Them - Verywell Health
Apr 6, 2025 · An acute or subacute sinus infection starts with inflammation of the nasal passages, which can occur due to an irritant, allergy, or infection, such as the common cold. 6 The …
Sinus Infection: Types, Causes, Symptoms, and Treatment
Sep 30, 2025 · A sinus infection can develop whenever this process is interrupted through mucus buildup or swelling. This article explains more about what types of sinus infections can occur, …
Sinus Infection (Sinusitis) | Asthma and Respiratory
Oct 17, 2024 · Sinus infections occur when viruses, bacteria or other germs inflame the tissue that lines your sinuses. As your sinuses swell, your body continues to make mucus.
Viral vs. Bacterial Sinus Infections - Cleveland Clinic Health …
Jan 18, 2021 · Discover how doctors determine whether your sinus infection is viral or bacterial. Learn some practical steps you can take to ease your symptoms.