Chestnut pimples can be treated with retinoid creams and, if necessary, in combination with oral medications and needle clearing. Chestnut papules are small cysts formed by the retention of epithelial keratin in the epidermis or in the ducts of hair follicles, sweat glands, and other skin appendages. Topical retinoid creams such as retinoic acid cream and isotretinoin gel can be used as prescribed by the doctor. If the treatment is not effective, you can take oral isotretinoin capsules, Avicenna capsules and other retinoids under the guidance of a doctor, or surgical needle clearing treatment. Topical retinoid creams may cause symptoms of skin irritation, such as burning sensation, erythema and flaking, which may make the lesions more pronounced, but at the same time indicate that the drug is working and is not an indication of exacerbation. It should be contraindicated in people who are allergic to the product, as well as in pregnant and breastfeeding women. You can use Vitamin A acid ointment to treat milia, but it is recommended that patients go to the hospital in time, under the guidance of the doctor to standardize the use, do not self-medication.