Edema – Do you feel like you are holding some extra pounds of water weight? Do you have swelling in a particular area of your body? This VibraPak may be just what you need to help your body shed that bloated feeling due to fluid congestion. These frequencies work best through a sonic whole body vibration machine, but will also help when played through speakers. You can also place the speaker on or near a body part that is swollen due to injury. This works well in conjunction with Pain relief and Trauma VibraPaks.