Pores, whether enlarged or blocked, serve as the openings to hair follicles on your skin, with sebaceous glands attached to these follicles producing a natural oil called sebum to maintain skin moisture. While pores are essential for skin health, they vary in size, with those on the nose, chin, and forehead often naturally larger due to the corresponding larger sebaceous glands. Enlarged pores are more common in individuals with oily skin. While it's not possible to physically shrink large nose pores, there are treatments available to give the appearance of reduced size.