An antipruritic composition and a wound-healing-promoting composition which comprise Sasa albo-marginata (Bambooseae Sasa) extract in an amount ranging from 1 to 10% by mass as expressed in terms of the solid content thereof. The composition of the present invention comprises the Sasa albo-marginata extract in a concentration substantially higher than that observed for the conventional composition and accordingly, the composition shows high antipruritic effect against skin diseases such as atopy, which have conventionally been considered to be difficult to treat and/or alleviate and the composition likewise shows an excellent wound-healing-promoting effect.