Causes and patterns vary. Contact dermatitis appears at the site of contact with an irritating substance or allergen.

接触性皮肤炎是因皮肤接触了刺激性物质或让人产生过敏反应的物质。

youdao

Contains grain and caviar extracts, as well as Macadamia nut oil, to form a natural protection layer that shields UV and other irritating substance for healthy skin.

蕴含谷物及鱼子精华，加上夏威夷果仁精油，为肌肤形成天然保护膜，隔绝紫外线等外在刺激，保持皮肤健康。

youdao

This disinfectant belongs to practically nontoxic substance with weak cumulative toxicity and has no obvious irritating effect on animal skin.

该消毒剂属于实际无毒，弱蓄积毒性，对动物皮肤无明显刺激性。

youdao

No doubt the tone of the Obama attacks is irritating, but what about the substance?

WSJ: What's at Stake in Wisconsin