An allergy preventive or itching preventive food containing persimmon leaves or a persimmon leaf extract, a persimmon leaf extract-containing cosmetic composition having the action of improving allergic rough skin conditions or alleviating itching, an allergy or itching preventive or therapeutic composition. The polishing method of the invention is a polishing method for a substrate having a silicon oxide film on the surface, and the polishing method comprises a step of polishing the silicon oxide film with a polishing pad while supplying the polishing solution for CMP between the silicon oxide film and the polishing pad. A first selector 101 selects predetermined bits from the first pixel information and generates second pixel information. The first and second winders are rotatably mounted to the base member to wind first and second inner wires of the first and second cables.