How should the affected area be treated according to RICEM?

The RICEM protocol is a method used to manage injuries, particularly sprains and strains. It stands for Rest, Ice, Compression, Elevation, and Medicine. In this context, applying ice is crucial because it helps reduce swelling and numbs the area, which alleviates pain. Ice should be applied for 20-30 minutes at a time, allowing the tissue to cool and decrease inflammation without risking frostbite.

The other options do not align with the recommended practices for immediate injury management. Keeping the area warm and moving can exacerbate swelling and pain. Applying heat is generally contraindicated in the acute phase, as it can increase blood flow to the injured area, potentially worsening inflammation. Frequent massage might disrupt the healing process in the early stages of an injury, so it's not recommended either. Therefore, icing the affected area for 20-30 minutes is the appropriate choice according to RICEM.