Sinusitis can be caused by infection (sinus infection), but also can be caused by allergy and chemical irritationof the sinuses. A sinus infection (infectious sinusitis) occurs when a virus, bacterium, or fungus grows within a sinus. Sinusitis is one of the more common conditions that can afflict people throughout their lives.
People also ask
What are the causes of sinusitis?
Viral infection: Perhaps the commonest cause of acute sinusitis is influenza virus or common cold. Fungal infection: Weak immune system and anomalous sinus may increase the risk of fungal infection.
Why do antibiotics not work for sinus infections?
Colds are caused by a virus, which can make nasal tissue swell, blocking the holes that normally drain sinuses. If your sinus infection, also called sinusitis, is caused by a virus, antibioticswon鈥檛 help since these drugs kill only bacteria.
What are the different types of bacteria in sinus infections?
The common bacteria found in people with bacterial sinusitis are: Prevotella, Porphyromonas, Fusobacterium, and Peptostreptococcus are the genera that include the most common types of bacteria present in people with chronic sinus infections, or those that last 12 weeks or more. (4) What Are Fungal Sinus Infections and How Do They Occur?
Can fungi cause sinus infections?
Fungi are very unusual causes of sinus infections, says Dr. Hueston. While fungal sinus infections can occur in healthy individuals, they are most common in people with weakened immune systems. When your immune system is vulnerable, fungi can grow, especially in damp and dark environments鈥攁ka your sinuses.