It's best to ask your PA how to use it unless she adds it to the prescription. When I first went to PT for my treatment, during the first visit she said that we had to work on my scar tissue. I flatly told her that I had no adhesions and that my doctor said US treatments only! After I found out how well the ultrasound worked for me, I bought one from Amazon that I use occasionally on different areas that pop up. It's an easy helpmate! On my pes-anserine area, I just did circles up and down the tender area for about 10 minutes. I do the same for my other ouches. I hope you find that it helps you, too.