When should ice be applied to an injury?

Ice should be applied to an injury immediately after the injury occurs. This practice is crucial as it helps reduce swelling and numbs the area, alleviating pain. The application of ice in the first 24 to 48 hours promotes vasoconstriction, which decreases blood flow to the affected area, thereby limiting inflammation and further tissue damage.

Using ice right away is especially important for acute injuries such as sprains, strains, and bruises. The sooner ice is applied, the more effective it is in minimizing swelling.

The timeline mentioned in the selected option does not align with best practices for immediate injury management. It is vital to address injuries as soon as they happen; waiting 24-48 hours or applying ice only after swelling begins misses the opportunity to effectively manage the injury right from the start.