Sinusitis is a very common disease, caused by many reasons. Depending on the type of sinusitis and the cause of the disease, the doctor will have an appropriate treatment regimen.

Sinusitis is an infection of the mucous membrane lining the sinuses, leading to swelling, narrowing of the sinus openings, and pus and fluid accumulation in the nasal cavity. The accumulation of pus and fluid in the sinuses over time will affect other parts of the body such as the throat, ears, and head, causing discomfort to the patient.