I tried the new shock-wave therapy for plantar fasciitis. I had nothing to lose since I've tried everything else except surgery. So far nothing has happened. Should I have another treatment? How long should I wait in between sessions?

You're asking some good questions that haven't been fully answered yet. Studies are underway to find out the best way to give the shock treatments. At the present time, three months is used as a guiding point. By this time, most or all of the healing process should be completed. Whatever results you might get will be over by then.

Many patients notice a benefit as early as four weeks after the first treatment. If you're not happy with the results, you can try it again. Retreatment takes place at least three months after the first session. In a recent study about half the patients who had a second treatment were helped.