Generally speaking, this procedure is safe. However, with any procedure there are risks, side effects, and the possibility of complications. The most common side effect is temporary pain. The other risks involve infection, bleeding, possible worsening of symptoms and allergic reactions. Other risks are related to the side effects of steroids including weight gain, increase in blood sugar (mainly in people with diabetes), water retention, suppression of body's own natural production of cortisone, etc. Fortunately, the serious side effects and complications are uncommon.