Tennis elbow is an overuse injury marked by pain on the outside of the elbow near the bony prominence. The pain may radiate down the arm and may be worsened by grasping objects or extending the wrist. Tennis elbow is caused by microtears in the tendons that attach your forearm muscles to the outside of your elbow. These tears are caused by over-use, often in sports or manual labor.
If you experience these symptoms, particularly if you have recently increased your level of activity or performed tasks such as raking or hammering, the best way to promote healing is rest from activity. Use of ice and anti-inflammatory medications can speed healing, while strengthening and changes in technique may prevent future injury. If your pain does not resolve within 2-3 weeks, contact your physician.