To provide a dirt removing sheath enabling always to clean a comb by removing dirt adhered on the sheath detachably engaged with the comb, exchanging the sheath when it becomes dirty, to provide new function of impregnating hair tonic, hair oil, or aromatic oil into the sheath and giving medically and cosmetically good effects to the head skin of the hair while combing the hair, and to provide an improved comb that keeps the hair tonic, hair oil, or aromatic oil in it and can squeeze out to the sheath in order to achieve the bitter effect.

The dirt removing sheath is engaged with the base or all of teeth of the comb 1, is easily attached or detached, and can infiltrate the hair tonic, hair oil, aromatic oil, or the like. The comb engaging with the dirt removing sheath 2 is provided with a liquid reservoir 3 and a liquid passage 4 for spreading the hair tonic, hair oil, aromatic oil, or the like to the dirt removing sheath.