Oil and Tar Acne: This acne like eruption occurs in areas of skin exposed to and directly in contact with oil and crude tars. It is not common now but out break still occurs. Many patients presents with periorbital (around orbit or eye ball) comedones. People with acne vulgaris are more prone to develop, but it is not proven.

Men are more commonly involved then women . The skin shows comedones and rarely inflammatory lesions. If inflammatory lesion are present they are superficial. Thighs and lower arms are more prone to develop lesion, which occurs within 6 weeks of exposure. The commonest oil involved are impure paraffin mixture used in engineering industry.