Not all day, but half day and mine was also with lidocaine injections. Bring a couple stress balls. My electrologist had them on site. Those injections are no joke. I still have 3 sessions left, they still scare me every single time, and they still hurt far more than I remembered from last time too. As stated though, the bonus is that you don't feel a thing during the electrolysis, so a couple minutes of Hell is worth it.