I have had close to 180 hours of electrolysis and now I have only clearing sessions once a week and have not shaved in a year. I can remember, earlier in the treatment, the need to not shave so I could do my sessions with some hair growth -used to go 2x a week. But some would get horribly long and visible and I work in finance, so I compromised and actually used a sissor to trim it down to an un-noticable length but ok for eloctro. After electro, and I never went beyond 1 hour, I would have very mild swelling for a couple of hours. Its not noticable to third partieds. I have had 2 technicians and one would cause more pain and swelling, she was slower and I felt went beyond the depth of the base of the follicle with the needle, and I have brought this to her attention, otherwise my usual one is just great.