... with micro-electricity is an instrument through high frequency to solidify, actuate epidermic cells necrosis ,which can ... , Operation 1, disinfect; using the 75%alcohol to disinfect the spot removal needles 2, plug into ... the power switch ,then take out the needles to clean,disinfect. 2,when removing spot ,needle ... scab fall off, never pick very deep to leave scar or convexoconcave holes 4,don’t ...