If you are in your first trimester of pregnancy (it is okay to use during labor – please consult your doctor)
If you have numbness or less feeling over a painful area
If you have pre-existing lymphoedema. T.E.N.S. may affect lymphatic circulation, causing further fluid retention. Issues of skin integrity should also be considered
If you have a pacemaker
If you have a cardiac condition
If you currently have Cancer or if you have previously had cancer
If you have recently experienced unexplained noticeable weight loss
If you have undiagnosed pain
If you have epilepsy
If you have had a stroke (Cerebrovascular Accident – CVA) or mini-stroke (Transient Ischemic Attack – TIA)
While driving or operating potentially dangerous machinery
While in the shower
Do not use internally (inside your body)
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)
Do not use if an allergy develops to the pads, adhesive or tape that is used. Find alternative materials