The answer is dependent on a few things. If you use a spoon style stp, you wouldn't need to wipe at all. That is if you are proficient in using it. However there are times when you may dribble or leak a bit, so yeah you may need to wipe. Now for the nipple style, I felt that I did. I didn't like feeling wet and dirty down there. With the whizpacker there are two different ways to use it. If you position it on the"outside" of you, yes I needed to wipe. I've discovered that if I position it on the inside of my lips, I don't feel the need to wipe.