PROBLEM TO BE SOLVED: To provide an antibacterial-disinfecting agent having high safety and excellent antibacterial-disinfecting performance, and to provide a treating/prophylactic agent for atopic dermatitis.SOLUTION: This antibacterial-disinfecting agent includes the extract of Fabales order, Leguminosae family, genus Havardia, Havardia-Mexicana bark as an active ingredient.COPYRIGHT: (C)2013,JPO&INPIT【課題】安全性が高く、優れた抗菌・殺菌性能を有する抗菌・殺菌剤及びアトピー性皮膚炎の治療・予防剤を提供する。【解決手段】マメ目マメ科ハバルディア属ハバルディア・メキシカーナ樹皮の抽出物を有効成分とする抗菌・殺菌剤。【選択図】なし