Rubbing ice on the face cannot affect the opening or closing of skin pores. However, ice cubes have anti-inflammatory properties and can reduce the appearance of pores on the skin. Rolling some ice cubes on the skin can help tighten the skin of the face and close the pores. While ice can remove excess dirt and oil from the face, it only has a temporary effect on pore size because eventually, the skin temperature will return to normal. Pore size is genetically determined, so it is not possible to shrink pores permanently. However, some products and treatments can minimize the appearance of pores. If you are interested in shrinking pores, look for collagen-boosting skincare products. Cooling treatments, such as refrigerated face masks, can restrict pores or reduce the inflammation of irritated blemishes, but pores will never fully close. Regular exfoliation is a must to keep pores healthy and strong. When pores get clogged, they tend to stretch, which makes them look bigger. Exfoliation helps remove dead skin that can clog pores. If your pores bother you a lot, you may consult a dermatologist for office treatments, such as laser therapy, that may visibly reduce the size of pores.