It is an object of the present invention to provide anti-allergic agents, skin creams, dermatitis-blocking agents, pollinosis-alleviating agents, and bath agents that serve as antipruritics derived from natural products and that prevent, alleviate and treat various itches felt on the skin.The present invention relates to anti-allergic agents, skin creams, dermatitis-blocking agents, pollinosis-alleviating agents, and bath agents comprising Purpuricenus temminckii frass as an ingredient.