An oily smelling face can be caused by acne, folliculitis, seborrheic dermatitis and other conditions. 1. Acne: usually due to excessive sebum secretion, abnormal keratinization of cells around the hair follicle, inflammatory reaction and other conditions, and also related to drugs, eating habits, high temperature environment and other factors. Patients often appear pimples, papules, pustules, accompanied by sebum overflow, usually in the cheeks, forehead and jaw, and some patients may also appear nodules, cysts and so on. 2. Folliculitis: usually due to bacterial infection and other pathogens. Patients often appear in the follicle as the center of the red papules, the top can also have white pustules, pustules containing white or yellow pus, and some patients can also be accompanied by itching, tenderness and other symptoms, can also be manifested in the face of the oil smells bad. 3. Seborrheic dermatitis: the cause of the disease is not yet clear, mostly considered to be related to heredity, dietary habits, neurological dysfunction, immune dysfunction and other factors. Generally occurring in the sebum secretion parts, can be manifested as diffuse erythema, severe cases can also appear vesicular ulcers, which can also appear on the face of the oil smell stinks of the situation. It is recommended that patients with oily smelling face, timely medical treatment, according to the cause of the targeted treatment.