Hi,

Do you have any stiffnes or pain or issues with your neck? a number of "tennis elbow" diagnoses are often mis-diagnosed and therefore do not respond to treatment on the extensor tendon (at the elbow). The source of your problems may actually be starting at your neck............. I would recommend seeing a physio to get your neck cleared as a source of symptoms prior to wasting any more money on treating your tennis elbow.

Cheers Leane