Detailed answer

Body oils are typically designed for use on the body and are not specifically formulated for the delicate skin in the bikini area. The skin on the bikini area can be more sensitive and prone to irritation, so it is best to use products that are specifically made for that area. Instead, consider using creams or lotions that are specifically formulated for the bikini area, as they may contain ingredients that can help address roughness and irritation while providing necessary hydration. If the roughness on the knees persists, it is recommended to consult with a dermatologist for further evaluation and appropriate treatment.