You can expect 40 minutes to relax. The Zerona treatment is completely painless. There is no heat or any sensation whatsoever while being treated. Each treatment you will be met by Dr. Epper, or a chiropractic assistant, who will position the laser at the desired areas of the body, they will step out for 20 minutes while the back of your body is treated and then will return to reset for the frontside of your body for an additional 20 minutes. After you are done you can get back to your normal activities immediately with absolutely no downtime, nor pain, swelling or any discomfort.