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.
As the swelling continues, the bursa begins to stretch, which causes pain. The pain often worsens with direct pressure on the elbow or with bending the elbow. The swelling may grow large enough to restrict elbow motion. If the bursitis is infected, the skin becomes red and warm.