Do not place pads in a way that directs the current through the chest wall (i.e. by placing one electrode on the back and the other opposite this on the front of the chest)
Do not place pads on the front of your neck.
This risks stimulating the carotid sinus, which could cause cardiac problems (usually hypotension)
Do not apply pads over the eyes
Do not place pads across the temples on the head
Do not place pads over incisions or broken skin, sores and areas of eczema and psoriasis
Do not use with very high intensity if you find that your skin feels like it burns (dermal reaction due to electrical irritation)