Black pores, or blackheads, are the result of dilated follicular sebaceous duct openings that lead to the accumulation of external dust or metabolic products, thus forming blackheads and pimples. To get rid of blackheads on the face, the first step is to pay attention to skin cleanliness, reduce the use of oily cosmetics, do not squeeze and scratch with your hands, and control the intake of fat and sugary foods. Patients can use a number of topical medications, including retinoids, peroxynivalenol, antibiotics, azelaic acid, and other medications. For patients who cannot tolerate or do not want to accept medication, physical therapy, such as photodynamic therapy, intense pulsed light, and red and blue light irradiation, can also be considered. In addition, facial acid brushing treatment is also very effective for blackheads and acne. The acid brushing at home can choose low concentration of salicylic acid or fruit acid, which is safer; hospital acid brushing generally uses higher concentration of salicylic acid or fruit acid, which has more obvious effect, but needs to be operated by professional doctors. Note that after brushing acid must be protected from light and sunlight.