The flare-up of the inner elbow is Golfer's Elbow not Tennis Elbow. Even so, it must not be severe at all. I use the green and feel like any more would rip the tendon right off the bone. I think that might be the distinction. Some people get tenderness or soreness of the tendon in general.
Mine, however, is soreness and probably scar tissue at the connection between the bone and the tendon. It's quite difficult to heal. Right now, I am questioning the FlexBar just a bit. After almost two weeks, I am more sore if anything. However, the forearm feels stronger. I am going with the theory that the tendon scar tissue is being broken down and it's being remodeled. Trying to be patient.