Hello, Sorry to hear this. This is not an electric shock. The 4-pole head is a radio frequency head,If the energy is turned up very high and it is suddenly placed on the skin, it will feel like a touch of pain because it generates focused heat. To operate the RF head, you can first adjust the energy by 1-2 levels, then apply the product, touch the skin and move it slowly. If you open it up all at once and put it on your body, few people can bear it.