How do i know if i have allergic fungal sinusitis?

Allergic Fungal: Hello, different pathogens can cause sinus disease. Within the sinuses and nasal cavities exist bacteria and fungi. If conditions occur that lead to infection it could be due to either pathogen. Bacterial infections typically resolve with antibiotic therapy. If sinusitis persists, a resistant bacteria or fungal infection may be present. Culture and/or ct scan will help determine the cause.