Open acne refers to what is often referred to as blackheads, which can be removed clinically by general treatment, medication, other treatments and other treatments. 1. General treatment: patients need to pay attention to daily cleaning, it is recommended to use neutral soap, to prevent oil adhering to the face, resulting in pore clogging, and pay attention to diet, avoiding spicy, greasy food and sweets. 2. Drug treatment: Clinical generally take topical drugs and oral drug treatment, topical drugs including adapalene gel, tazarotene gel, clindamycin ointment, and so on. Oral medication includes isotretinoin, minocycline, etc. 3. Other treatments: including photodynamic therapy and laser therapy, mainly used as auxiliary treatment. When the above situation occurs, it is recommended that the patient consult a doctor in time for targeted treatment, so as to avoid other uncomfortable symptoms. The above drugs need to be used under the guidance of a doctor.