I take the dung, mould it and leave it to dry so that it easily absorbs the blood. The girls do not put the cow pattie directly on the skin. I wrap many clothes over it to avoid itching when placed on the underwear. Then I show them how to close their private parts to block the bleeding.
The girls have heavy flows with cycles that typically last six days. We prefer this method because cow patties soak up a lot of blood. Once soaked, we dispose of it privately by burying it in the ground. Our Shona culture does not allow that men see such things.
h/t DeploraVision ™