How Ice Packs Reduce Injury Swelling and Pain

Mechanisms

• Vasoconstriction: Cold narrows blood vessels, reducing blood flow and fluid leakage.
• Numbing: Decreases pain sensation.
• Anti-inflammatory: Limits inflammatory response.

Applications

• Muscle strains/sprains
• Bruises
• Minor burns
• Insect bites/stings

Usage Guidelines

• Apply 15–20 minutes, several times daily.
• Always use a towel/cloth barrier to prevent frostbite.

Consult a doctor if unsure.