What Causes It?
Inhalation of airborne fungal spores, such as Aspergillus or Candida.
Weak or compromised immune system, making the body less able to fight fungal growth.
Chronic sinus infections creating a favorable environment for fungi.
Prolonged use of antibiotics, which can disturb the natural balance of nasal flora.
Nasal or sinus structural abnormalities that block drainage and trap moisture.
High exposure to mold in damp or poorly ventilated areas.
Signs & Symptoms
Persistent nasal congestion or blockage
Thick, discolored nasal discharge (often brown or black in invasive types)
Facial pain, pressure, or swelling
Loss or reduction of smell
Headache, especially around the eyes and forehead
Postnasal drip (mucus draining into the throat)
Fever and fatigue (more common in invasive cases)
Swelling or redness around the eyes (in severe infections)