Answer: The bursa are pads that are between tendons and bone. They protect the tendon from wear from rubbing over the bone but sometimes can themselves become inflamed (bursitis). It is usually related to over-use.
Answer: septic = infectious olecranon = of the elbow bursitis = inflammation/irritation of the bursa bursa = slippery tissue to help joints move
You must get a doctor to look at your elbow as soon as possible. Infections can spread and do damage internally. Temperatures over 98.6, even slightly, might indicate that it is in fact septic and not aseptic. This makes it even more urgent to get to a doctor ASAP, meaning right when you read this.
Answer: Depends on where the complaint is, but warmth is good. For my finger joints, I apply high pressure at a right angle (right on the joint) to the plane defined by the bending joint -- that seems to work well for me. (I bite the joint to apply the pressure.)
Answer: you might not recover, depending on why you have the bursitis to begin with, and seeing as the shoulder is such a mobile over used joint, your probably going to keep irritating it and have continued inflammation
Answer: To view online photos of bursitis of the shoulder, enter "bursitis shoulder" into your favorite search engine, and then click on the links that indicate they have images (e.g., Google Images has many such images as shown at the link, below).