We describe two patients with an unusual, limited form of acne manifest as a single row of large, open comedones along the entire cutaneous margin of the upper lip. The acne began after repetitive application to the lips of Chap Stick in one patient and petroleum jelly (Vaseline) in the other. It was treated successfully by eliminating the Chap Stick and petroleum jelly, respectively, as well as by microincision and expression of the comedones. Petrolatum, the major ingredient of Chap Stick, appears to be responsible for this type of acne.
我们描述了两名患有一种不寻常的局限性痤疮的患者，其表现为沿上唇整个皮肤边缘有一排大的开放性粉刺。其中一名患者在反复使用唇膏后发病，另一名患者则是在反复使用凡士林后发病。通过分别停用唇膏和凡士林，以及对粉刺进行微切口和挤压，病情得到了成功治疗。唇膏的主要成分凡士林似乎是导致这种痤疮的原因。
