Clogged pores on the arm mainly have the following options: 1, arm skin time long not clean, there will be a lot of waste keratin, thus causing pore blockage, then you need to use some exfoliating products, in the arm pore blockage to strengthen the massage and then rinse off with running water, and then moisturizing cream can be. 2, allergies will appear in this situation, you need to look for allergens. The actual pore blockage is often related to folliculitis, bathe regularly, you can use sulfur soap to open the pores, while supplementing vitamin B, eat more vegetables, fruits, and drink more milk. 3, peri-keratosis will appear arm pore blockage, then need to go to the hospital, if the diagnosis is peri-keratosis need symptomatic treatment, external use of vitamin A cream, salicylic acid and so on, if necessary, also need to take oral medication.