A cold pack is a therapeutic device used to reduce inflammation and pain by applying cold to the affected area. Homemade cold packs are a convenient and cost-effective alternative to store-bought packs. They can be made using various materials, including ice, frozen vegetables, or even rice.
Cold packs work by constricting blood vessels, which reduces blood flow to the injured area. This helps to reduce swelling and pain. Cold packs can also help to numb the nerves in the affected area, which can further reduce pain.