Blackheads grow out of black hair should firstly do a good job of skin cleansing, and secondly can be used to apply drugs to promote pore contraction, hair shedding. Blackheads appear because the skin oil secretion is much and caused by the clogging of pores, oil by air oxidation black. The blackhead itself will not grow black hair, but if there is a common opening between the blackhead and the hair follicle, then there is a possibility of hair growing on the blackhead. 1. Skin cleansing: wash your face diligently to avoid excessive oil secretion leading to clogged pores again, and do not squeeze the blackheads to avoid the pores getting bigger. 2. Local can apply Vitamin A acid cream or azelaic acid gel and other ointment, kill pathogenic microorganisms, improve the phenomenon of blackheads, and promote hair shedding. If there are more blackheads and long black hairs, involving a large area of skin, then it is best to go to the hospital dermatology department for treatment. Under the guidance of professional doctors, fruit acids and salicylic acid can be used to shrink pores, and antibacterial and anti-inflammatory treatment can also be carried out through red and blue light irradiation. Drugs need to be used in accordance with medical advice.