Cold compresses for the eyes are to make the inflammation subside quickly, while hot compresses are to promote recovery from the disease. Cold and hot compresses are frequently used by the common people, and the eyes sometimes use these practical methods. A disease that often uses cold compresses is mydriasis, commonly known as the eye of the pick, is a sudden redness, swelling, heat and pain in the eyelids, and touch can find a hard nodule, may be mydriasis. A cold compress may be used in the early stages of mydriasis, and cold compresses can reduce congestion and inflammatory reactions. If the wheals appear hard nodules, during the recovery period, hot compresses can be used, which can play a role in improving blood circulation, promoting the metabolism of local tissues and speeding up the recovery of the disease.