From Chris Adams,
Your Guide to Ergonomics.
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A. What is Cortisone?

Cortisone is a steroid made by the adrenal gland. It is released by the body to counteract stress.

Cortisone used is a cortisone shot is a synthetic version that closely resembles natural cortisone but is more potent and lasts longer.

What is a Cortisone Shot?

A cortisone shot is an injection of synthetic cortisone into an inflamed area of the body. Cortisone is a powerful anti-inflammatory and is used to treat a number of syndromes with inflammation as a cause or side effect. Some syndromes are:

• Tendonitis
• Bursitis

What Should I Know About Cortisone Shots

• Cortisone shots do not treat pain, only inflammation.
• Cortisone shots can be painful. Large needles may be necessary to deliver the cortisone to the target area.
• Cortisone can crystallize and cause pain worse than before the shot. This is called "cortisone flare" and is often brief.
• Cortisone can cause a lightening of the skin.
• Cortisone can damage the tissues where it is injected.
• Most physicians usually limit you to three cortisone shots.