The pads must be moist and sticky to work. Pads that are not moist enough will produce a weak and stinging sensation. Before each use dip your finger into some clear water and rub the water onto the massage pads.
Apply the pads immediately to your skin when they are still wet. Make sure that the pads are making full and firm contact with the skin. Worn out pads may also cause a stinging sensation. Replace the tens unit pads as needed. Even if you feel stinging sensations, it is still safe to use.
You can use it as often as you like.
You can use it from 20 to 60 minutes each time, 2 to 3 times a day if needed. A typical session is usually 10-30 minutes. There are NO chemicals or drugs involved and the only side effects from these portable tens units are one may be a little sore the next day if used for too long.
This is typically why in therapy a session will be anywhere from 10-30 minutes. If you feel a little sore the next day just simply decrease the amount of time during the next session.
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