Common sanitary napkins have a long absorbent area in the middle, with an "ear"-shaped flap on each side. Before use, you need to wash your hands, then open the package, take out the sanitary napkin, first tear off the paper tape in the middle, stick the glued side to the middle of the underwear, and align the two wings at the narrowest part of the underwear. Then tear off the small piece of sticker on the back of one side of the wing, fold the wing outwards and stick it firmly to the side of the underwear, and fix the other side in the same way. The sanitary napkin is firmly adhered to the bottom of the panties due to the adhesive adhesion of the bottom and the fixing on both sides.