He used the wrong razor and excoriated his skin.

excoriated 是动词 excoriate 的过去式。excoriate 来自拉丁语，由前缀 ex-（表示"向外"）和 corium（"皮肤"）组成，字面意思是"剥去皮肤"，引申为"擦伤皮肤"或"严厉批评"。在医学语境中，excoriated 指皮肤表层被刮擦或磨损造成的损伤。