Generally you shouldn't shave for a day before electro, and to avoid scaring, infection you shouldn't shave for at least a day or two afterwards. Plus, the area that's been worked on shouldn't have make up applied for a few days. I usually hide myself for a few days after electro. Mind you I have three hour sessions so the unpleasant after effects are a bit more noticeable than they would be from a one hour session, but still.