Black spots on the legs with blocked pores are considered to be the possibility of perifollicular keratosis, which can be softened with topical keratinizing drugs, and can also be treated with laser therapy in the hospital, but the disease is considered to be related to heredity, metabolic disorders, etc., and cannot be completely removed by any treatment method. Commonly used topical ointments for keratosis pilaris include retinoic acid cream, tazarotene gel, salicylic acid ointment, cod liver oil, etc. These ointments are able to soften or dissolve keratin and improve the symptoms of keratosis pilaris. However, there is a possibility of adverse reactions such as skin redness, tingling, peeling, etc. They are contraindicated for use in children, pregnant women, breastfeeding women, and so on. If necessary, oral treatment with retinoids can be taken. If the effect of ointment treatment is not too obvious, you can use the laser method to remove, but it may take a little longer, after laser treatment to strengthen the skin moisturizing care and sun protection measures. In addition, patients with clogged pores on the legs with black spots may also be sebaceous cysts and other diseases, usually need to be treated by surgical peeling cyst wall. It is recommended that patients with symptoms of blocked pores and black spots on the legs go to the hospital in time for examination, after a clear diagnosis and standardized treatment under the guidance of the doctor, do not blindly use their own medication.