Sinusitis is often triggered by an upper respiratory tract infection, whose cause may be viral, bacterial and fungus.

Viral sinusitis is the most common and usually resolves within 10 days. It mostly results from the common cold virus or flu.

However there are viruses which affect the rest of the body, hence sinuses. An example is measles, as the body skin is peeling off, the lininig in the nose is also peeling off, so one experiences a bloody discharge.

HIV can also cause inflammation of the nose and discharge, hence viral sinusitis. Sinusitis caused by fungus is common in the diabetic and those with immune deficiencies.

Ends