Particularly large pores may be caused by heredity, excessive oil secretion and other factors, and can be improved through general measures, medication and physical therapy. 1. General measures: Large pores may be caused by heredity, or excessive oil secretion, resulting in blocked pores. In daily life, you need to do a good job of removing makeup and cleaning, keep your skin clean and dry, and avoid washing your face with too high a water temperature. Outdoor need to do a good job of protective measures, maintain sufficient rest time, do not stay up late, can improve the symptoms of particularly large pores. 2. medication: patients can take oral vitamin drugs under the guidance of the doctor, such as vitamin B2, vitamin C, etc., can inhibit oil secretion, with antioxidant effect. Or topical Vitamin A acid drugs, such as Vitamin A acid ointment, adapalene gel and so on. 3. Physical therapy: patients can also take laser treatment, through the selective photothermal effect, thereby stimulating the subcutaneous collagen, so that the pores are reduced. Patients with particularly large pores can go to a regular hospital and take treatment measures under the guidance of a doctor. All of the above medications should be used in accordance with medical advice.