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An ice pack or gel pack is a portable bag filled with water, refrigerant gel, or liquid, meant to provide cooling. They can be divided into the reusable type, which works as a thermal mass and requires freezing, or the instant type, which cools itself down using chemicals but can only be used once.
Ice refers to the application of cold objects to an injury, such as ice, an icepack, frozen vegetables, etc. [1] It was meant to reduce swelling and inflammation by vasoconstriction. [15] However, adequate blood flow is essential in allowing cells and signals from our immune system to reach injured areas.
These injuries often affect the fingers, toes, nose, and ears since they are less commonly covered by clothing when in cold environments. [1] Affected skin becomes numb, turns white or blue, and develops blisters. [1] Frostnip is a superficial skin injury that won't freeze the skin or cause long-term damage. [8]
If injury is more extensive, potentially even a skull fracture, an apparent black eye can sometimes worsen and may require professional medical treatment before it will resolve. This is more likely if the area around both eyes has been injured ( raccoon eyes ) or if there is a history of prior head injury or fracture around the eye.
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The most common injury respondents had from trying to open packaging was "a cut finger, followed by a cut hand, sprained wrist, bruised hand and strained shoulder muscle." [ 10 ] According to a British study, over 60,000 people receive hospital treatment each year due to injuries from opening food packaging. [ 5 ]
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