Blackheads refer to open pimples in medicine and can be removed through general treatment, medication and physical therapy. 1. General treatment: Patients with open acne can use mild skin cleanser to wash their face, keep the area clean and dry, and reduce the intake of high fat, high sugar and spicy stimulating food. 2. Medication: Patients can apply adapalene gel, tazarotene gel and other retinoids, which can regulate cell differentiation and facilitate the dissolution of acne. Benzoyl peroxide gel can also be used externally to kill Propionibacterium acnes, to achieve the effect of eliminating acne. 3. Physical therapy: patients can also choose to combine red and blue light irradiation of the local, killing Propionibacterium acnes and alleviating the symptoms of acne. If you want to remove open acne, it is recommended to go to a regular hospital and follow the doctor’s instructions to choose the way to remove acne. Medications should be used as prescribed by the doctor.