Overview

Joint injections are shots into a joint, such as the knee. They may be used to put in medicines, such as pain relievers.

A corticosteroid, or steroid, shot is used to reduce inflammation in tendons or joints. It is often used to treat problems such as arthritis, tendinitis, and bursitis.

Steroids can be injected directly into a painful, inflamed joint. They can also help reduce inflammation of a bursa. A bursa is a sac of fluid. It cushions and lubricates areas where tendons, ligaments, skin, muscles, or bones rub against each other.

A steroid shot can sometimes help with short-term pain relief when other treatments haven't worked. If steroid shots help, pain may improve for weeks or months.

How can you care for yourself at home?

• Put ice or a cold pack on the area for 10 to 20 minutes at a time. Put a thin cloth between the ice and your skin.
• Ask your doctor if you can take an over-the-counter pain medicine, such as acetaminophen (Tylenol), ibuprofen (Advil, Motrin), or naproxen (Aleve). Be safe with medicines. Read and follow all instructions on the label.
• Avoid strenuous activities for several days. In particular, avoid ones that put stress on the area where you got the shot.
• If you have dressings over the area, keep them clean and dry. You may remove them when your doctor tells you to.