Large pores and oiliness may be caused by improper diet, oily skin type and late nights, which can be improved through dietary regimen, daily care and adjusting work and rest. 1. Improper diet: Eating more greasy food will easily make the oil secretion exuberant, and the oil clogging pores will lead to enlarged pores. Patients need to pay attention to a light diet, eat as little greasy food as possible, and reduce the factors that stimulate the secretion of oil to improve the enlarged pores. 2. Oily skin: People with oily skin have high oil secretion. Oily skin is natural and can’t be changed by human beings. If you have oily skin, you can clean your face regularly with mild cleansing products to help improve the appearance of large pores. 3. Staying up late: Staying up late leads to insufficient sleep, which easily affects the endocrine and leads to sebaceous gland secretion disorders, resulting in sebum stagnation in the pores, making the pores become enlarged. Patients need to adjust the habits of work and rest, as little as possible to stay up late, to maintain sufficient sleep time. At present, for enlarged pores, can also be improved through chemical skin resurfacing, photoelectricity treatment and other medical measures, patients who have the will to treat recommended to the regular hospital for appropriate examination, by the specialist according to the condition of the symptomatic treatment.