Final answer:
Andrew should use the RICE technique for his sprained ankle, which includes using cold to reduce swelling, not heat. If symptoms persist, seek medical attention.
Step-by-step explanation:
For Andrew, who has recently sprained his ankle from playing hockey, the recommended initial treatment is to follow the RICE technique which stands for Rest, Ice, Compression, and Elevation. Applying cold to the injury right away will help in reducing inflammation and swelling. The use of a brace or cast could be necessary to decrease joint mobility and provide support during the healing process. However, it's significant to note that heat should not be applied immediately following the injury, as it can exacerbate swelling. Heat is typically utilized later in the healing process to increase blood flow and promote muscle relaxation, once the acute inflammation has subsided.
If Andrew's symptoms persist or worsen, it is advisable to seek medical attention as more severe injuries may require additional interventions, such as physical therapy or potentially surgery depending on the extent of the injury.