Ice the affected area as soon as possible after the injury and continue to do so for 15 to 20 minutes four to eight times a day for the first 48 hours, or until the swelling subsides.
Icing an injury is usually done immediately after the injury occurs.
A cold compress or ice pack applied to a strained muscle can reduce inflammation and numb pain in the area.
Icing relieves pain and swelling by constricting blood vessels and decreasing circulation to the affected area.
Thus, we can conclude that icing should be done for 15- 20 minutes to treat injuries.
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