The term “sinusitis” refers to the inflammation of the sinuses, which occurs as the body’s response to infection.This infection may be caused by fungal, viral or bacterial exposure, although it may occur in response to an allergy as well. Sinusitis is actually fairly easy to detect, and it can easily bediagnosed by the characteristic symptoms: runny nose, coughing, sneezing, and headaches. In some people, the condition can also result in fever. Most treatment methods for sinusitis involve managing the symptoms as opposed to actually treating the condition. Patients may benefit from the pain relieving properties of marijuana, but the potential irritation from the smoke may warrant another means of ingestion other than smoking.