The stronger you ask them to do it, the better the effect is!
However, there is a possibility of nerve damage (for example, when pressing the cheek near the ear, the muscles around the mouth feel a tingling sensation..).
When the effect of Shurink wore off, the nerve sensation did seem to come back too.
Also, if you flinch, you can get burned. I think the mark lasted about 2 weeks..?
If it’s done weakly, you barely feel anything and it’s like, huh? The effect was so subtle that only I could notice it.
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