PROBLEM TO BE SOLVED: To provide an antiallergic agent that is useful for the prophylaxis and treatment of atopic dermatitis and others, is safe and can be used continuously.SOLUTION: An antiallergic agent comprises Cydonia oblonga seed extract or Cydonia oblonga fruit extract as an active ingredient, wherein, the Cydonia oblonga seed extract or Cydonia oblonga fruit extract may be organic solvent extract or water extract, the organic solvent may be an alcohol, and the antiallergic agent may be an allergic skin disease prophylactic therapeutic composition.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】アトピー性皮膚炎等の予防治療に有用な安全で連続使用可能な抗アレルギー剤の提供。【解決手段】マルメロ種子抽出物又はマルメロ果実抽出物を有効成分とする抗アレルギー剤。マルメロ種子抽出物又はマルメロ果実抽出物が、有機溶媒抽出物又は水抽出物である抗アレルギー剤。前記有機溶媒が、アルコールである抗アレルギー剤。抗アレルギー剤が、アレルギー性皮膚疾患予防治療用組成物である抗アレルギー剤。【選択図】なし
