Thank you for the positive encouragement. In regard to doing research and your homework, what I recommend is to definitely watch a video about how the procedure is performed. How a needle is used to poke under the skin in the upper thigh area to numb about 3 inches in length across the thigh...this is very painful as the skin tissue and muscle in that area is tender and soft. Then the IOVERA three-pronged needle is used to poke again across the same thigh area. This is also done in the inside area of the knees...also very painful even with numbing. Look at a chart showing the different nerves around the knees and be aware which ones will be numbed. Know that the numbing sensation will be felt all over on the outside of your body and not just on the nerves on the inside. Tingling and itching occurs when the numbing begins to wear off and can also move to different areas on your leg such as the lower leg and ankle. I never really experienced much nerve pain prior to having the IOVERA but now I feel sharp, stabbing, burning pain inside my legs. In my opinion this procedure is harsh and a very invasive procedure. Really consider why you are wanting to have it done and if there are any other options. I can attest that the procedure alone causes much more pain than the end result...which provided no pain relief to my knees and legs at all. I do not recall the person using an ultrasound device during the procedure. Please also note that the cost of this treatment was not covered under my health insurance and was very costly. I'm still trying to stay positive about my experience but beginning to feel regretful. Icing, elevation, rest and care does not appear to be helping so I have resorted to taking a round of prednisone which seems to be helping with the inflammation, pain and healing. Thank you for your comments, replies and concern. Thank you for listening and sharing...sending warm hugs and healing to you.