The causes of pimples on both sides of the nose may be folliculitis, acne, seborrheic dermatitis and so on. 1. Folliculitis: Folliculitis is usually caused by bacterial infection or irritation of hair follicles. Since the sides of the nose are often rubbed, it is easier for acne to appear on both sides of the nose. 2. Acne: Acne is mainly caused by increased sebum secretion and androgen secretion. It may also be related to the keratinization and inflammatory reaction of the cells around the hair follicles, which can cause sebum and shed epidermis to clog the pores, inducing acne on both sides of the nose. 3. Seborrheic dermatitis: Seborrheic dermatitis is a chronic inflammatory skin disease, the cause of which is still unclear, mostly related to heredity, dietary habits and so on. It is usually characterized by mild itching, erythema, rash, flaking, etc. When the sebaceous glands on both sides of the nose secrete too much oil, it will lead to acne in the area. Since there are various reasons for acne on both sides of the nose, it is recommended that patients go to the hospital for further examination in time to clarify the cause of the disease and actively cooperate with doctors for treatment.