short pain ..... but then no more scratching!

I was a bit skeptical this pin opposite ....... but after I tried it on my faith-
EXCELLENT !!
The pen will not only just after the bite, but in my experience, and discounts for 1 day after!
Pen on puncture-turn-burn "put away" Itching away .......
So my experience and therefore a strong buy recommendation!

However, a criticism must be leveled at the workmanship ..... especially at the back of the battery compartment, this is at best flawed!
If you exchange the battery, kanns happen that the contacts slide and the pen does not work.
After 2 repeated opening and Straighten the contacts he is working again.