Greetings Hank @jesfactsmon and welcome to 2021.
I wanted to get back to you about the friendly Penquin. I actually took "Pen" to my MFR treatment so that we could both observe the process. As you said...the vibrations are strong enough to reach down several skin layers and relieve the "itch." As you might have expected, the itching doesn't stay away very long.

Now here is what I do not know ..... perhaps you can help. What is the frequency used? Is it possible that a too high frequency would become less than helpful? Here is what happened to me. That night I had what we call a "flare" when you just can't chase the itch away no matter how hard you try. Back scratcher.....bath sheet rub......and if available some coconut oil. I don't know if the Itch outran the Penquin or vice versa. I just noticed. In my world of mindfulness, awareness is a skill we work very hard to improve. Any thoughts? With five settings on Penquin and lots of itchy skin....it could get confusing.

Be safe and protected.
Chris