After the extraction of teeth can be used with ice packs, in general, you can apply a towel, take the ice packs wrapped up, and then placed in the extraction of teeth trauma corresponding to the skin of the cheek. Due to the invasive operation of tooth extraction, especially for the extraction of wisdom teeth, relatively traumatic, after the extraction of teeth, the corresponding surgical area will have a tendency to swelling and bleeding, through the cold compresses can shrink the local capillaries, corresponding to make the swelling and bleeding phenomenon to be relieved. So twenty-four to forty-eight hours after the extraction of teeth, can be intermittent cold compress, and has a better clinical effect, but more than three days after the extraction of teeth, it is not recommended to continue to cold compress, because at this time the cold compress has not had any effect.