To provide an auxiliary tool for face washing, protecting clothes from getting wet with water by dropping the water going along the arm at face washing at the midway.

The auxiliary tool is constituted of a ring body comprising a water-repellent spiral ring to be attached by being expanded and contracted according to the thickness of the arm at least from the wrist to the elbow, and a stopper body fixed to a part of the ring body. The ring body has a surface tension allowing the water going along the arm to be introduced to the body and to be dropped downward at the vicinity of the lowest position. The stopper body has the surface tension allowing the water going along the arm to be introduced to the ring body, and arbitrarily fixes the moving ring body by the shrinkage.