The knee, shoulder, and elbow are all body parts that receive a lot of use — and as a result, they are subject to injuries, wear and tear, and pain. If oral medications are not working to relieve the pain, your doctor might recommend the use of an injection to relieve the pain.
Many injections involve the use of a local anesthetic, which delivers pain relief and numbing right away. When the anesthesia wears off, the anti-inflammatory medication that was injected will begin to target a specific area and provide relief by interrupting pain signals that are sent to the brain.
What conditions does it treat?
Knee, shoulder, and elbow injections are used for a wide variety of conditions. If you have a joint inflamed from an injury or from arthritis, a local anesthetic and corticosteroid can reduce your pain level. Injections are also useful for tendonitis, frozen shoulder, and bursitis, the swelling of one of the sacs that serves as a cushion between muscles.
What can I expect afterward?
The relief that you feel from injections varies according to the type of injection you received, the pain you were experiencing, and the location of your pain. You may feel relief for a few days or experience relief for up to several weeks. Depending on your situation, your doctor might recommend an injection a few times a year.