Types

• There are three types of sinus infections: fungal, bacterial and viral. According to sinusinfectionhelp.com, fungal sinus infections are rare and often go overlooked because most sinus infections are bacterial.
  
  

Symptoms

• Fungal sinus infections are easily identified by extreme symptoms. Most common are: bouts of fever, chronic and persistent sore throat and the overwhelming feeling of being sick.
  
  

Diagnosis

• The most effective way to diagnose whether a sinus infection is fungal is to have your doctor X-ray your sinus cavity.
  
  

Prevention

• Fungal sinus infections are a result of environment. Drink plenty of water, take a decongestant whenever you feel congestion in the sinuses and keep your home dry and clean. Remove any mold or other fungus from the bathroom, the sidewalk and other humid places.
  
  

Complications

• If a fungal sinus infection goes untreated, it can lead to the fungus spreading into the throat, creating a new issue: throat thrush. The infection itself may spread into the ears, chest or eyes.