- Nasal endoscopy - A thin, flexible tube (endoscope) with a fiber-optic light is inserted through your nose which allows your doctor to visually inspect the inside of your sinuses.
- Imaging studies - A CT scan shows details of your sinuses and nasal area.
- Nasal and sinus samples: The samples of nasal and sinus discharge helps in diagnosis.
- Allergy testing: It can help detect what allergen is responsible for your nasal flare-ups.
In general, the treatments for sinusitis are recommended on how old the condition is. Mostly, it can be treated with medications but the condition can be uncomfortable. After the diagnosis, a doctor may prescribe over-the-counter (OTC) medications to relieve the symptoms but that can not cure the condition entirely. If the sinus cause severe issues or complications, surgery may be recommended. The modern and most advanced treatment is minimally invasive where sinus ostia and sinus air cells are opened under direct visualization. The surgeons use a small camera called an endoscope allowing to complete the procedure using detailed image guidance.