Dermopathy may happen using wrong needles,especially by treating the neck.
Hard and not flexible needles, or needles with wrong size can lead to such dermopathy.
In such case, no treatment is required. Such dermopathy may disappear in 10 days .
We have tested since 20 years all kind of needles before arriving to those conclusions.
That s why it is recommended to use needles 30g1/2 BD for the face & neck or Mesorelle.