what is sinusitis disease

Sinusitis is an inflammation of the tissues in the sinuses, which are the spaces in your forehead, cheeks, and nose usually filled with air. It can be caused by viruses, bacteria, fungi, and allergens. The common cold, flu, and allergies are some of the specific triggers for sinusitis. Symptoms of sinusitis include postnasal drip, runny nose with thick yellow or green mucus, stuffy nose, facial pressure, pressure or pain in your teeth, ear pressure or pain, fever, bad breath, cough, headache, and tiredness. Chronic sinusitis is when the inflammation continues for more than three months and can be caused by a variety of conditions or is associated with allergies, asthma, or nasal polyps. Acute sinusitis is typically caused by a virus and lasts 7 to 14 days. Treatment depends on the type of sinusitis diagnosed and can include over-the-counter cold medications, nasal steroid sprays, and sometimes antibiotics.