Blackheads on a girl’s nose are a mild manifestation of acne, generally associated with abnormal keratinization of hair follicle openings, sebaceous gland secretion, and the follicle-clogging material is oxidized to black dots when exposed to the air, hence the name. It can be treated with cleansing and exfoliation, improvement of lifestyle and dietary habits, and medication. 1. Cleaning and exfoliating: the opening of the sebaceous gland of the hair follicle is over-keratinized, the oil secretion of the skin is exuberant, and blackheads are formed when sebum excretion is blocked due to untimely cleaning. 2. Improve your dietary habits: You should eat and drink lightly, work and rest regularly, and use some oil-control skin care products to avoid excessive secretion of oil. 3. Medications: such as retinoic acid cream, adapalene gel, etc., can regulate the keratin and help metabolize blackheads. The use of drugs has certain side effects, should follow the doctor’s advice. You can also use local acid products to remove the old waste keratin, such as brush fruit acid. If you have blackheads, you should pay attention to improving your lifestyle and dietary habits, and if necessary, you should go to the hospital and follow the doctor’s instructions, do not use your own medication.