There are three benefits that ice pack provided. First, puffy eyes are common among individuals. Skin around our eyes is easy to loosely attached and lack of any sebaceous glands. When you apply cold pack around your eyes, it will help the fluids accumulating in your eyes tissues work well and help you get rid of puffy eyes. Second, when you get sinus and migraine headache pains, ice pack can help you reduce pains and make you feel better as It can low the temperature of your head and help you recover sooner. Third, ice pack can help you heal your injury in the cold. Because cold can constricts blood vessels and thus reduce blood flow and swelling around the injured area. Using ice pack can help limit your tissue damage and help your body recover. But remember remove ice pack after a brief cooling period as your skin is sensitive and don't used to the cold condition. So when you want a speedy healing process, you should apply ice pack for ten minutes and put it off for ten minutes. Repeat this cycle several times during the day to help decrease further damage.