Cryotherapy is used in which scenarios?

• A. Acute injuries or trauma immediately after injury or post surgery
• B. Chronic injuries or repetitive strain injuries
• C. After physical therapy sessions only
• D. During sleep or rest periods

Answer: (A)

Cryotherapy works by cooling tissues to cause vasoconstriction, reduce metabolic rate, and slow nerve conduction, which together help limit inflammation and numb pain. Because acute injuries and recent surgeries involve swelling and the early inflammatory response, this cooling effect is most beneficial right after injury or post-op to control edema and pain and to protect tissues from secondary damage.

In contrast, chronic injuries aren’t driven by acute inflammation, so cold therapy isn’t the primary treatment there; it might be used briefly for flare-ups but isn’t the main approach. It isn’t limited to after physical therapy sessions, though that setting is common, and using cold therapy during sleep isn’t typical due to monitoring and safety concerns.