I myself have long gained experience in this sensitive issue, and the skill came to me far from immediately. And I decided to learn how to do it myself. At first it was difficult, dirty and inefficient. I could spend half a roll of toilet paper at a time, could erase my anus to the blood, and not having achieved the coveted purity.
Wipe your mouth. Wipe your feet and come in. Вытри ноги и войди. Here, wipe your tears. Вот, вытри слезы.