PROBLEM TO BE SOLVED: To provide a method for identifying and demonstrating a medicine-applied portion, for visualizing an applied state of a medicine usually visually unrecognized when using a colorless insect repellent for a human body applied to a skin in order to protect a human body from noxious insects, such as a mosquito, a gnat, a horn fly, a house dust mite and a bedbug.SOLUTION: The method for identifying and demonstrating a medicine-applied portion is provided in which a fluorescent material component is combined in an insect repellent medicine and the periphery of a medicine-applied portion is irradiated with ultraviolet light after applying the medicine, the fluorescent material component being unidentifiable in a visible light region however being fluorescently colored by ultraviolet irradiation using black light thereby being visualizable and identifiable.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2019,JPO&INPIT【課題】本発明は、本発明は、蚊、ブヨ、サシバエ、イエダニ、ナンキンムシ等の害虫から人体を守るために皮膚に塗布して使用する無色の人体用害虫忌避剤の使用に関して、通常、目視ではわからない薬剤の塗布状態を可視化させるための薬剤塗布部識別デモンストレーション方法に関する。【解決手段】害虫忌避薬剤中に可視光線域では識別できないがブラックライトによる紫外線照射により蛍光発色させ可視化識別できる蛍光材料成分を配合し、当該薬剤の塗布後に塗布部周辺をブラックライトにて紫外線照射する薬剤塗布部識別デモンストレーション方法。【選択図】図2