Open large pores bring about an uneven surface to the skin as a result of sun exposure, oily skin, blackheads and acne. These are often spread around the face and the nose. Cleansers containing geranium, chamomile and witch hazel can be used to reduce the size of the open pores. These ingredients help release dead skin cells in the blockage. Rubbing some ice on the face may help manage the open pore but only temporarily. Kaolin clay mask is useful to treat large pores. Body hydration is essential to cool down these pores as the toxins are flushed out.