Daily Natural Remedies Natural Lifestyle Tips. 10 Natural Remedies for a Sinus Infection. A sinus infection may often be mistaken for a bad cold but is a common health problem. In fact, sinusitis is an inflammation and congestion of the nasal passages. The condition may be triggered by a number of causes such as airborne allergens, dietary irritants, common pollutants, viruses, polyps, or even the overuse of nasal products in some cases.
1 Inflammation, such as from pressure on the bursa or from inflammatory conditions. This is the most common cause of olecranon bursitis.  A sudden injury, such as a blow to the elbow, causing bleeding or fluid buildup.
Pleural effusion is an abnormal, excessive collection of this fluid. There are two types: Transudative pleural effusion is caused by fluid leaking into the pleural space. This is from increased pressure in the blood vessels or a low blood protein count. Congestive heart failure is the most common cause.