Instant cold packs are a convenient direct replacement for crushed ice used as first aid on sport injuries, and can be carried as first aid to remote or wilderness areas where ice is unavailable. This chemical reaction makes instant cold packs very useful when you’re outdoors and have no way of getting ice to treat a sprain, bruise or even an insect bite. These packs can stay cold for about 20-15 minutes, that is enough time for a person to receive emergency treatment for common aches and pains.

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