Nope. She has never been near oil. The only thing I have done is put neosporin (without painkiller) on a rat bite she had recently. twice a day for at least a week and put her on paper towels for over around 1.5 months. I would think it was the neosporin seeing as thats a side effect but its all over her body. Maybe when she coiled up she rubbed it on herself? Or she's just in shed, and since my humidity was low because of the above situation i'm just gonna have to deal with a horrendous shed.