Children with blackheads on the nose, considering open acne, can be treated by topical medication, oral medication, local picking out and other methods. 1. Topical medication: azelaic acid ointment can be used externally, the main purpose of which is to kill Propionibacterium acnes, dissolve pimples, dissolve the secretion of the hair follicle, and shrink the pores. 2. Oral medication: such as doxycycline, minocycline, isotretinoin, etc.. Doxycycline and Minocycline are prohibited for children under 8 years old. 3. Topical picking out: you can also find a professional physician to disinfect the skin and use a sterile needle to pick the skin and pick out the blackheads. Children with blackheads on the nose, you can also apply laser and other physical treatment methods, it is recommended to go to the hospital in time to check, follow the doctor’s instructions for treatment, to avoid their own abuse of drugs.