PROBLEM TO BE SOLVED: To provide a nail tinea treatment tool which enables patients with underlying diseases, such as liver disease, and pregnant women and breast-feeding patients to be treated without restriction, solves the individual difference in the treatment, and allows an antimycotic external preparation to be efficiently percutaneously absorbed from a nail surface to a deep part of the nail safely at low cost in a short period of time without side effects.SOLUTION: In the nail tinea treatment tool consisting of a dome-shaped container 1, recess-structured escape grooves 3 for an adhesive are provided on a joint surface where the adhesive is applied, the joint surface being provided around an opening of the dome-shaped container, and the surplus adhesive is introduced into the groove to control the surplus adhesive leaking from the joint surface and entering the dome-shaped container.COPYRIGHT: (C)2013,JPO&INPIT【課題】肝臓疾患など基礎疾患がある患者や妊婦および授乳中の患者に対しても制限なく治療が可能であるとともに治療における個体差を解決し短期間で副作用がなくしかも安価で安全に抗真菌外用剤を爪表面から爪の深部にまで効率的に経皮吸収させる爪白癬治療用具を提供する。【解決手段】ドーム型容器1からなる爪白癬治療用具であって、該ドーム型容器の開口周辺部に設けられた接着剤を塗布する接合面に凹部構造の接着剤の逃げ溝3を設けて余剰の接着剤を該溝部に導入して接合面から余剰の接着剤が漏出してドーム型容器内に侵入するのを制御する。【選択図】図8