I've done this before with a homemade device and it worked super well - I'm on day 5 of the dermadry device and imo it's much better than my homemade one. I'm pretty sure it's gonna work
https://youtube.com/watch?v=bOQfjZ9-Akw…
That's what I used at first; if you can't afford dermadry this will work, and it was super effective for me.
Dermadry is just more convenient, has auto reverse polarization, armpit ability, and you can change the exact strength