hi, i have had both areas treated so thought i would add my experience.
on my underarms i have only had thermolysis (short wave) and flash thermolysis. i am a woman and the first time it took about 2 and a half hours for both. now it takes about an hour or less. i used to wait 6-8 weeks in between treatments but now i go every 2-3 weeks. i find the underarms to be the most painful areas for me so by going in every two weeks there’s just a little to be done and i don’t have to suffer through it for so long. i really couldn’t stand the hour long treatments or even 40 mins. anymore.
as far as legs, i am not having them done regularly but once i had them worked on with blend and probably a 2X2 sq inch area was cleared in an hour and it was PAINFUL and i felt it was a GIANT waste of time and money. i had the same lower leg worked on for one hour with Flash thermolysis and over half of my lower leg was done. my current electrologist can clear my lower leg in 2 hours or less with Flash.