Blackheads are a mild manifestation of acne and are caused by factors such as clogged follicular openings. Blackheads on the sides of your child’s nose can be treated with general therapy and medication. Blackheads belong to a kind of open blackheads, the reason is mainly due to the local skin sebaceous gland secretion, and the follicle sebaceous gland opening due to over-exfoliation, cleaning is not timely and caused by the blockage, sebum excretion is blocked in the follicle mouth accumulation of air oxidation after the formation of blackheads. General treatment: pay attention to light diet, avoid staying up late, use mild oil control cleanser to clean the face, can reduce sebaceous gland secretion, improve the symptoms of blackheads. Medication: You can use acid products to exfoliate to avoid keratinization of hair follicle openings, such as brushing fruit acids; or use Vitamin A acid drugs such as Vitamin A acid cream to regulate keratin treatment. If your child has blackheads, parents should take your child to the hospital in time and follow the doctor’s instructions to standardize the treatment, do not self-medication.