It should reduce the possibility to get burns.
Because what you do is a electrolysis with a 100% offset. The positive side of the Pad gets acidic and the negative Side gets alkalic.
And if you swap the polarity every xxx Seconds, the they should cancel each other out over time.
But if the current is too high for the small pads and you have a bad contact, then it will not change much.
And you may want to get an more alkaline tissue at the negative Pad because this accelerate the healing at this side.
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