tennis elbow

This has never happened to me before, but the tendons in my elbow have really been getting sore every time I take a set. My job is pretty heavy labor and am sure has been a cause, but I just don't have time to rest and wait for it to heal up. Any of you guys ever had this problem...what did you do to get rid of it? Right now I just pop a few ibuprofen every time I hit the water, but I don't want to have to keep doing that.