I'm fortunate to have very little facial hair, and I can't even begin to grow a mustache. However, I do have a few stray hairs that I keep removed every so often with an epilator. The hairs on the outer part of the lip are rather painless to remove, but the ones in the middle (right below the nose) hurt a pretty good bit if I let them grow out too much That's the beauty of waxing/epilating... if you maintain the area and don't let new hairs get thick and well-rooted they'll come out much easier and with less pain.