The phenomenon of redness and acne on the face may be seborrheic dermatitis, or it may be caused by folliculitis or acne, etc., which should be taken according to different causes of different treatment measures, such as medication. 1. Seborrheic dermatitis: a chronic inflammatory skin disease that occurs in seborrheic overflow areas, which can be manifested as an erythematous rash accompanied by flaking, itching and other symptoms, which can be coated with calcium-modulated phosphatase inhibitors such as tacrolimus ointment, pimecrolimus ointment and so on. At the same time, pay attention to keep the facial skin clean and dry, avoid the intake of greasy, spicy stimulating food. 2. Folliculitis: an inflammatory skin disease caused by bacteria and other pathogens infecting hair follicles, often manifested as red papules centered on hair follicles and accompanied by itching and pain, which can be relieved by antibacterial lotions, such as chlorhexidine gluconate solution. 3. Acne: a kind of follicle sebaceous gland chronic inflammatory disease, can also show the phenomenon of redness on the face acne, which can be used externally with Vitamin A acid drugs such as adapalene gel, tazarotene gel, benzoyl peroxide, antibiotics, such as fusidic acid and so on. If necessary, drugs such as oral isotretinoin capsules and doxycycline tablets can be taken in combination. If the above symptoms occur, it is recommended to identify the cause of the disease and actively cooperate with the doctor’s treatment, and follow the doctor’s instructions for medication.