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Chronic sinusitis causes the spaces inside the nose and head, called sinuses, to become inflamed and swollen. The condition lasts 12 weeks or longer, even with treatment. This common condition keeps mucus from draining.
9 mar 2023 · What causes sinus infections? Viruses, bacteria, fungi and allergens can cause sinusitis. Specific triggers for sinusitis include: The common cold. The flu (influenza). Streptococcus pneumoniae bacteria. Haemophilus influenza bacteria. Moraxella catarrhalis bacteria. Nasal and seasonal allergies. What are the risk factors for sinusitis?
29 sie 2023 · Acute sinusitis is most often caused by the common cold. Signs and symptoms may include a blocked and stuffy (congested) nose, which may block your sinuses and prevent drainage of mucus.
29 sie 2013 · Sinus congestion occurs when the mucous membranes become irritated or infected and start to excrete more mucus than normal, filling those hollow areas with thick mucus.
Nasal congestion happens when something irritates tissues lining the inside of your nose. The irritation sets off a chain reaction of inflammation, swelling and mucus production, making it hard to take in air through your nose. Left untreated, nasal congestion may cause sinusitis, nasal polyps or middle ear infections.
Causes of catarrh. Catarrh is your body's natural reaction to things like infection. The lining in your nose, sinuses and throat becomes swollen and creates more mucus than normal. Causes of catarrh include: infections like cold, flu and sinusitis; pollution and cigarette smoke; allergic reactions to things like pollen, dust and animals
26 lip 2023 · Symptoms and Causes. What are chronic sinusitis symptoms? If you have chronic sinusitis, you may feel: Tenderness or pressure, particularly around your nose, eyes and forehead. Thick yellow or green mucus from your nose or postnasal drip (mucus that builds up and drips down the back of your throat). Stuffy nose. Toothache.
